Improve classes approach to optimize resources used to render

[MadejaMaciej]

Overview

Please, implement better classes handling which includes:

• Creating MonoBehaviour class which in constructor invokes start function, and start function invokes update function at the end (and update function invoke itself by request animation frame)
• Create game class which will derive from MonoBehaviour class and will hold player and other variables (for example game manager) and redraw the game
• GameManager which will hold info like paused and tell player what he can do now. It should derive from MonoBehaviour as well.
• Character class derieved from MonoBehaviour, currently empty, but will hold basic logic about character later
• Player class derieved from character class, that will update by itself
• Move animations and static vars to different file

[MadejaMaciej]

After some consideration, as this is small game, we do not have to do that at all - it might be even better to leave it as it is and not invoke multiple animationFrames.

We might want to do that in version 1.x as there will be some enhancments.