Make copy of game before starting engine think to prevent concurrency issues

Add ChessPlayer class to abstract player behavior

Fix color mismatch issues and modify eval function

Change search for research folder to parent and working directory

Adjust parameters and add thinking output to log file

Add thinking debug logs and fix bugs

Add separate AI thread to prevent it from locking GUI.

Add move sorting heuristic

Improve static evaluation function

Fix bug with min calculations

Add basic minimax algorithm to AI player

Refactor hasPossibleMove logic

Fix logging wrong team after checkmate

Add AI player to GUI controller

Fix bug with checkmate calculation