Merge pull request #1 from Mikhail1425/master

Проверка шаха
Checks: check_mate etc
Fix EatTurn#check to check color of a figure under attack
Made Figure#check private, #check_eat, #check_not_eat and so on are still public
Field#check_check refactored, Field#check_mate created (not full code yet)
check mate
fix coord.cpp
coord.cpp --> cpp and header
separate turn header and body
separate field header and body
headers
gitignore
separate figure header and body
fix dependencies
fixes for field.cpp (constructors,...)
todo
choose_figure
Fixed dereferences, fixes virtual and static modifiers and so on
check en-passant; fix everything
todo
run game; field#draw
+#include<cctype>