gmod_game: Added Vector and Angle unary meta functions, made ..

Revision 777
Added Vector and Angle unary meta functions, made Player.GetTool work clientside, modified undo.AddUndo to not create a new table and unlocalized undo.GetTable. Changed Files:
[ul]
[li]trunk/gamemodes/sandbox/gamemode/player_extension.lua [/li][li]trunk/lua/includes/modules/undo.lua[/li][/ul]
Added Files:
[ul]
[li]trunk/lua/includes/extensions/angle.lua [/li][li]trunk/lua/includes/extensions/vector.lua[/li][/ul]

Committed By Alexander Overvoorde

Overv is in yer mod fixing yer lua niggles