remote protocol (#3225)

* draft remote protocol types and external api

* types (it compiles)

* add error

* move remote controller from http to remote host client protocol

* refactor (doesnt compile)

* fix compile

* Connect remote session

* WIP: wire in remote protocol

* add commands and events

* cleanup

* fix desktop shutdown

* prepare for testing remote files

* Add file IO

* update simplexmq to master

with http2 to 4.1.4

* use json transcoder

* update simplexmq

* collapse RemoteHostSession states

* fold RemoteHello back into the protocol command
move http-command-response-http wrapper to protocol

* use sendRemoteCommand with optional attachments
use streaming request/response

* ditch lazy body streaming

* fix formatting

* put body builder/processor closer together

* wrap handleRemoteCommand around sending files

* handle ChatError's too

* remove binary, use 32-bit encoding for JSON bodies

* enable tests

* refactor

* refactor request handling

* return ChatError

* Flatten remote host

---------

Co-authored-by: Evgeny Poberezkin <2769109+epoberezkin@users.noreply.github.com>

tests/JSONTests.hs

@@ -9,7 +9,7 @@ import qualified Data.ByteString.Lazy.Char8 as LB
 import GHC.Generics (Generic)
 import Generic.Random (genericArbitraryU)
 import MobileTests
-import Simplex.Chat.Remote (owsf2tagged)
+import Simplex.Chat.Remote.Protocol (owsf2tagged)
 import Simplex.Messaging.Parsers
 import Test.Hspec
 import Test.Hspec.QuickCheck (modifyMaxSuccess)