Added MouseState and Methods to Input
Added Mouse handling to MenuScreen and Loading Screen
Added mouse handling to GamePlayScreen
Updated Startup Project
Revert "Updated Startup Project"

This reverts commit cbcad658e5e708492fc3dbf8555a34bb3c1f1170.
Added mouse handling to HighScoreScreen
Added mouse handling to LevelOverScreen
Updated Comments
Merge pull request #41 from borrillis/feature/MouseSupport4HoneycombRush

Feature/mouse support4 honeycomb rush