more work on resturcture

api/client.go

api/event.go

api/utilsInterfaces_test.go

dummy/utils_test.go

event/event.go

event/event_test.go

event/interface.go

fileTransfer/utils_test.go

groupChat/utils_test.go

interfaces/bloom.go

interfaces/message/encryptionType.go

interfaces/message/sendMany.go

interfaces/networkManager.go

interfaces/params/CMIX.go

interfaces/params/historical.go

interfaces/params/network.go

interfaces/preimage/generate.go

keyExchange/rekey.go

keyExchange/utils_test.go

network/address/testutil.go