Fixes Planning Poker Tab not displaying name, adds basic GUI to tab

The name of the module is now correctly displayed on the tab

New GUI elements
	-> List of Sessions
	-> Button to join existing sessions
	-> Button to create new session
Other Misc. Changes
	-> Modifies .gitignore to ignore .fuse* files, because those are a local filesystem thing
	   that don't need to be in the project
Fixes Planning Poker Tab not displaying name, adds basic GUI to tab

The name of the module is now correctly displayed on the tab

New GUI elements
        -> List of Sessions
        -> Button to join existing sessions
        -> Button to create new session
Other Misc. Changes
        -> Modifies .gitignore to ignore .fuse* files, because those are a local filesystem thing
           that don't need to be in the project