Некрасов Дмитрий, 2538

Implemented features:
- using bitmap instead of drawing rectangles on the screen;
- 240x320 size scaling to the size of screen;
- considering neighbours of a cell in 8 conditions instead of 2 cycles;
- no more sleeps when running.

The application runs on emulator at 15-21 FPS.
you have almost the same loop in `updateField`