Animation to menus

[Tomin1]

Animate menu buttons

They could for example move from the left side to center or they could appear by growing into their final size.
Should be done using svg animation and must be developed in its own branch (menu_animation for example).

Add other suggenstions to comments.
This can be assingned to anyone, I'm (Tomin1) not probably going to do this anytime soon. No deadline.