offloaded Significator FTs into FTs.test_room_sig_select; new sig-select.js imported into room.html; new apps.epic.consumers & .views, ITs to confirm functionality

src/apps/epic/consumers.py

@@ -25,3 +25,6 @@ class RoomConsumer(AsyncJsonWebsocketConsumer):
 
     async def roles_revealed(self, event):
         await self.send_json(event)
+
+    async def sig_selected(self, event):
+        await self.send_json(event)