清理了一下代码的行末空格和制表符.

Signed-off-by: shines77 <gz_shines@msn.com>
增加bitboard_flips.h和bitboard_flips.cpp

Signed-off-by: shines77 <gz_shines@msn.com>
bitboard_flips.xxx的一些小调整
完善bitboard_flip.xxx

Signed-off-by: shines77 <gz_shines@msn.com>
完善bitboard_flip.cpp的init_flip_mask()

Signed-off-by: shines77 <gz_shines@msn.com>
增加了cl_runner类, 支持OpenCL运算.