KeyboardHandler changes, extracting a base class for a menu page.
Basic menu state change handling, help page refactoring, minor readability imprpovements.
PlayPage refactoring #1. IT BUILDS!!!
Adding lightChangeSpeed.
Play menu page navigation functional
Navigation through the whole menu made possible.
minor UX changes
Merge remote-tracking branch 'origin/master' into refactoring

Conflicts:
	Tanks3DFPP/Tanks3DFPP/Game1.cs
	Tanks3DFPP/Tanks3DFPP/Tanks3DFPP.csproj.Debug.cachefile
Menu is now wired up properly.
minor fixes
reverting
camera fix
Going back to menu available

Going back to menu after finishing a battle available.
Immediate game restarting made possible.
Adding controls image, wiring up the light change speed.
Removing redundant content.
Merge remote-tracking branch 'origin/refactoring'