Merge branch 'develop' into feat/drng-ontology

packages/binary/datastructure/orderedmap/orderedmap.go

packages/binary/spammer/spammer.go

packages/binary/tangle/events.go

packages/binary/tangle/model/approver/approver.go

packages/binary/tangle/model/message/cached_transaction.go

packages/binary/tangle/model/message/id.go

packages/binary/tangle/model/message/init.go

packages/binary/tangle/model/message/payload/data/data.go

packages/binary/tangle/model/message/payload/data/init.go

packages/binary/tangle/model/message/payload/id.go

packages/binary/tangle/model/message/payload/payload.go

packages/binary/tangle/model/message/payload/type.go

...ages/binary/tangle/model/message/payload/type_register.go

...ages/binary/tangle/model/message/test/transaction_test.go

packages/binary/tangle/model/message/transaction.go

...ary/tangle/model/missingtransaction/missingtransaction.go

...y/tangle/model/transactionmetadata/transactionmetadata.go

packages/binary/tangle/tangle.go

packages/binary/tangle/tangle_test.go

packages/binary/tangle/tipselector/events.go