core: switch connection (#1277)

* core: switch connection

* chat items for SWITCH

* additional events for connection switch

* update simplexmq

* test

* comment test output

* update messages for connection switch

Co-authored-by: JRoberts <8711996+jr-simplex@users.noreply.github.com>

tests/ProtocolTests.hs

@@ -40,7 +40,8 @@ connReqData =
   ConnReqUriData
     { crScheme = simplexChat,
       crAgentVRange = mkVersionRange 1 1,
-      crSmpQueues = [queue]
+      crSmpQueues = [queue],
+      crClientData = Nothing
     }
 
 testDhPubKey :: C.PublicKeyX448