Tetris Check completion loop

[ragavendra]

hi,

First of all TYVM for this library.

I am from a per say Java or a non gaming b\g. I was going through this one to learn and understand about gaming. Then I stumble on the CheckCompletion method which I am seeing is looping for both h and v right from the beginning of the game almost exhaustively. Having attending interviews for the big Cs I thought a lot could be done to improvise the performance here. I know it is Clang and may not seem big, but I guess you understand what I mean.

--
Thanks,
Raga