Feat: CA consensus nearly finished *ticktock*

packages/ca/constants.go

packages/ca/errors.go

packages/ca/heartbeat/heartbeat.go

packages/ca/heartbeat/opinion_statement.go

packages/ca/heartbeat/proto/heartbeat.pb.go

packages/ca/heartbeat/proto/heartbeat.proto

packages/ca/heartbeat/proto/opinion_statement.pb.go

packages/ca/heartbeat/proto/opinion_statement.proto

packages/ca/heartbeat/proto/toggle_type.pb.go

packages/ca/heartbeat/proto/toggle_type.proto

packages/ca/heartbeat/proto/toggled_transaction.pb.go

packages/ca/heartbeat/proto/toggled_transaction.proto

packages/ca/heartbeat/serialization_test.go

packages/ca/heartbeat/toggled_transaction.go

packages/ca/heartbeat_manager.go

packages/ca/heartbeat_manager_options.go

packages/ca/heartbeat_manager_test.go

packages/ca/neighbor_manager.go

packages/ca/statement_chain.go

packages/marshaling/errors.go