FEAT: add timer class
FEAT: add timer class

This class will basicly replace timer generation in LinesComponent. It can
be utilized from any component which extends Layer. The timer has few
improvements:
* using .globalCompositeOperation rather then clearing rectange
* it starts from the top and go counterclockwise
* timer is now filled rather then stroked
* because there is no border, acute angle does not look weird.

marcincichocki/LoLPuzzles,marcincichocki/LoLPuzzles,marcincichocki/LoLPuzzles