[enh] #1084 WS2P: testing document routing

app/lib/streams/WS2PStreamer.ts

app/lib/ws2p/WS2PClient.ts

app/lib/ws2p/WS2PConnection.ts

app/lib/ws2p/WS2PResponder.ts

app/lib/ws2p/WS2PServer.ts

app/lib/ws2p/impl/WS2PMessageHandler.ts

app/lib/ws2p/impl/WS2PReqMapperByServer.ts

app/lib/ws2p/interface/WS2PServerMessageHandler.ts

test/integration/tools/toolbox.ts

test/integration/tools/user.js

test/integration/ws2p_connection.ts

test/integration/ws2p_doc_sharing.ts

test/integration/ws2p_exchange.ts