Added Peer stuff to RelayRTC

I've confirmed any and all issues past this point is C# related, and client is done being rewritten.

RelayClient/Resources/Raw/wwwroot/rtc.js

@@ -218,7 +218,8 @@ function closePeerConnection(username) {
 window.RelayRtc = {
     joinChannelCall,
     leaveChannelCall,
-    handleRtcSignal
+    handleRtcSignal,
+    peerConnections
 };
 
 window.handleRtcSignal = handleRtcSignal;