Now with Solve timer in uS
Timer now OK
now with command line sudoku 0 or . as empty fields
Merge branch 'next' of https://github.com/coolsen/Sudoku_c into next
Try to fix it, dont if I succeed
Conflicts:
	Sudoku_c.c
Merge branch 'next' of https://github.com/coolsen/Sudoku_c into next

Conflicts:
	Sudoku_c.c
 removed .git/MERGE_HEAD
Merge branch 'next' into windows

Conflicts:
	Sudoku_c.c

	modified:   Makefile
	modified:   Sudoku_c.c
	new file:   fork.c
	new file:   solve6.sh
	new file:   sudoku20.sud