Chesser - bluetooth chess

Feb 17, 2020

* version 0.1.21 *
- Chess piece movement fixed. Animation time is controllable via settings.

* version 0.1.20 *
- Chess piece movement added. Animation time controllable via settings.

* version 0.1.19 *
- New design including new boards!

* version 0.1.18 *
- undo turn button added
- en-passant bugs fixed

* version 0.1.17 *
- minor bug fixes

* version 0.1.16 *
- start new game button added