Merge branch 'ben/MessageID' into 'peppa/newClient'

api/send.go

interfaces/message/receiveMessage.go

interfaces/networkManager.go

keyExchange/rekey.go

keyExchange/trigger.go

keyExchange/utils_test.go

network/message/critical.go

network/message/garbled.go

network/message/handler.go

network/message/parse/partition.go

network/message/sendE2E.go

network/message/sendUnsafe.go

network/send.go

storage/e2e/manager.go

storage/partition/multiPartMessage.go

storage/partition/multiPartMessage_test.go

storage/partition/part_test.go

storage/partition/store.go

storage/partition/store_test.go