* replace 'transaction' with 'message' in message layer pkg

* remove more occurrences of 'transaction'

* fixes ReferencedMessageId() returning approverMessageId

* renames ApprovingMessageId to ApproverMessageId

* use ApproverMessageId in deleteFureCone()

* refactors message pkg

* renames payloadId in Message to contentId

* finalize comment on what a Message is

* refactors additional message sub pkgs

* renames 'transaction' to 'message' in gossip plugin

* removes occurrences of 'transaction' in graph plugin

* removes occurrences of 'transaction' in metrics plugin

* refactors dashboard plugin for messages

* removes further occurrences where tx is used instead of msg

* fixes TestMessageRequest in manager_test.go

* go fmt explorer_routes.go

* fix review comments

* fix Errorf order

* throw around bones

* Update analysis/client with Heartbeat message type

* Refactor analysis/server for heartbeat messages

* Bug fix in analysis server

* Fix heartbeat packet marshaling

* Fix `nodes` and `links` maps handling

* Fix in cleanup in recordedevents

* Fix typos

* Fix event log and heartbeat handling

* Refactor analysis server

 * Remove obsolete packet types
 * Run Analysis Server Record Manager in background
 * Refactor Analysis Client with ticker

* Define max amount of neighbors to report

* Small fixes

* New visualization for analysis server

* PR review fixes

* Remove `nodeOnline` and `nodeOffline` events from analysis server

* Refactor analysis frontend

* Fix bug in websocket, remove obsolete triggers

* Remove debug vars, re-enable websocket ping

* Stop ws pings when closed

* Color settings for visualizer

* Update graph colors

* Fix no neighbor bug

* Dynamically change springLength based on nodes

* Small color fix

* Rename ShutdownPriorityAnalysis

* Formatting, linter suggestions

* Update packr file for visualizer

* Websocket Write() instead of TryWrite()

* makes pprof profiling a plugin

* Update plugins/profiling/plugin.go

Co-Authored-By: Angelo Capossele <angelocapossele@gmail.com>

* Update pluginmgr/core/plugins.go

Co-Authored-By: Angelo Capossele <angelocapossele@gmail.com>

Co-authored-by: Angelo Capossele <angelocapossele@gmail.com>

Updating code due to code review changes.

* Add docker compose for running integration tests.
Runs entry_node and arbitrary number of peers in docker network

* Fix permission denied in container if run without mounting a `rw` volume making it possible to run as throw-away container.
Remove `VOLUME` from Dockerfile as this only pollutes host system with anonymous volumes.

* Use named network for easier external use

* Add test container that discovers peers and waits for autopeering to happen

* Fix min waitForNeighbors

* Add go.sum

* Run integration tests with Github Actions

* Added framework that abstracts the docker network and provides convenience functionality

* Update directory in Github Actions

* Add bash script for automated local test execution

* Add getMessageByHash endpoint

* Adjust to merge changes

* Add methods to easily do HTTP POST requests

* Added relay message test

* Increase client timeout

* Verbose output for tests makes it easier to follow the execution

* Introduce small API wrapper for GoShimmer HTTP API

* Adjust relay test to use new API wrapper

* WIP: Docker logs

* Fix issue with serving visualizer analysis server of entry node

* Persist logs of containers after CI run

* Fix test file

* Fix uploading of artifacts

* Save all containers' logs as artifacts

* Create logs files also with local run

* Add possibility to retrieve logs from a peer via Docker logs

* Make tester part of the goshimmer module to make code sharing possible

* Use client/lib to make HTTP requests in tester

* Fix unit test directory

* Add comments/doc to the code

* Add readme

* Move tester to own module and don't build container but use existing golang one instead

* Address PR comments

* Adjust to merge

* Only use 1 config file for all containers

* go mod tidy

* Rename client lib base url

* Feat: Add tips chart to dashboard

* Feat: Pack tips chart

* Fix: Fix wrong type in function parameter

* Fix: Use GetTipCount() in TipSelector

Co-Authored-By: Luca Moser <moser.luca@gmail.com>

Co-Authored-By: Luca Moser <moser.luca@gmail.com>

Co-Authored-By: Luca Moser <moser.luca@gmail.com>

Co-Authored-By: Luca Moser <moser.luca@gmail.com>

Co-Authored-By: Luca Moser <moser.luca@gmail.com>

* Feat: refactored message + started to add tests

* Refactor: go mod tidy

* Refactor: continued to refactor message

* Feat: updated to last hive.go + added Signature() methid

* Feat: go mod tidy

* Feat: added mutex to the signature write in Bytes()

* Fix: fixed Signature method

* Feat: refactored message methods

* Feat: refactored output

* Fix: fixed signature mismatch in tangle factory methods

* Refactor: go mod tidy

* Feat: added solditification logic to value tangle

* Feat: fixed some code related to objectstorage factories

* Feat: model refactor

* Fix: fixed a bug in the models of the valuetangle

* Feat: refactored storageprefix framework

* Feat: refactored some code

* Refactor: additional refactor in OS logic

* Refactor: refactored MissingPayload model

* Refactor: refactored further models

* Feat: refactored message + started to add tests

* Refactor: go mod tidy

* Refactor: continued to refactor message

* Feat: updated to last hive.go + added Signature() methid

* Feat: go mod tidy

* Feat: added mutex to the signature write in Bytes()

* Fix: fixed Signature method

* Feat: refactored message methods

* Added plugin structure and DB sequence number. WIP

* First version of transaction factory and builders for payloads #275

* Move marshalutil to hive.go

* Refactor existing code (before binary) to use new hive.go/identity #282

* Adjust binary code to use hive.go/identity and remove signature/ed25519 #282

* Adjust moved files from merge to use hive.go/marshalutil

* Adjust moved files from merge to use hive.go/identity and hive.go/crypto

* Adjust to merged changes

* Rename to MessageFactory

* Use local identity and tip selector

* Rename package

* Add tests

* Changed BuildMessage to receive an interface value instead of pointer

* Refactoring and comments

* Fix: fixed issues due to refactor

* Refactor: refactored the code

* Refactor: removed unnecessary messagefactory plugin

* Refactor: cleaned up code

* Feat: made spammer use messagefactory

* Refactor: refactored method name and docs

* Refactor: additional refactor

* Refactor: go mod tidy

Co-authored-by: Hans Moog <hm@mkjc.net>