PraseTja: Add branches

- Needs the following changes to the database: change `easy`, `normal`, `hard`, and `oni` to `TEXT` type
- When adding songs to the database and if, for example, a song's 7-star difficulty has a branch, instead of `7` input `7 B`, this is to display song's branch support on the song selection
- Branch can be forced in debug

server.py

@@ -185,6 +185,7 @@ async def connection(ws, path):
 					if "other_user" in user and "ws" in user["other_user"]:
 						if type == "note"\
 							or type == "drumroll"\
+							or type == "branch"\
 							or type == "gameresults":
 							await user["other_user"]["ws"].send(msgobj(type, value))
 						elif type == "songsel" and user["session"]: