16-06-16: SJCE - added game log/debug support and many more

Changes of last week:
1) Added game log/debug support
2) After long testing excluding support for 2 losing engines:
a) Krudo - have too many bugs;
b) Tri-OS - don't support en-passant and can't play with depth > 7;
3) Added handlers for mate, repetition, resign, checkmate, stalemate, moves null/a1a1/none events;
4) Added cleaner for Bagatur's engine large log;
5) Added some board themes;
6) Rival engine two identical moves after mate state bug fixed - added handler for this event;
7) For Unidexter and Eden engines resign bugs fixed - added handlers for this events;
8) For Carballo engine return to support version 1.4 - because v1.5 very often output "bestmove none" in the middle of the game.