Handling scores sketch

Added new scene MainMenu
Iteration of maingame
Sketch completed of MainMenu

Fixed random logic of Letters
Tweaks and effects
Base mechanics completed

Added detonator for the fun
Added Timer script

Ascending/Descending seconds clock based on seconds and fractions
Refactor

isGoalTimeOver to -> isOverGoalTime
Added effect to spheres and clock 20s
Movement of balls ingame
Moving objects with Slerp
Endgame dialog added
Storing scores
Fixed scores
Added Kongregate web support