Small bug fixes — Chess Tools Steam update #848735

Patch Notes: Tutorials: Updated and Improved all opening tutorials Fixed typos Move Highlighter: Fixed many bugs associated with this tool for example: -If only an enemy king was defending a piece but two friendly piece were attacking it, it would be marked as a bad capture (red highlight). This will now show a good capture (green highlight). -If only a pawn was defending then it would always be marked as a bad capture even it was attacked multiple times. Now it will show a good capture (green highlight) White and black check tool: Fixed a bug where a possible check would be shown when a pawn wasn't on its starting square but a check was being shown 2 moves away. Import PGN: Fixed a bug that would make some PGN imports not work. It was associated with how I didn't specify a white or black piece. Upcoming fixes: Improving and checking all other tutorials.