Fixed several bugs relating to full screen/window, fps limiting, and show fps toggling.

git-svn-id: svn+ssh://svn.code.sf.net/p/yabause/code/trunk@3162 d7be59e3-070e-4b9a-85a1-4646befae34d
Fixed handling of vertical resolution of 224 in software renderer. It's now being drawn with the correct 8 pixel offset at top and bottom.

git-svn-id: svn+ssh://svn.code.sf.net/p/yabause/code/trunk@3163 d7be59e3-070e-4b9a-85a1-4646befae34d
Added a check for __builtin_bswap16

git-svn-id: svn+ssh://svn.code.sf.net/p/yabause/code/trunk@3164 d7be59e3-070e-4b9a-85a1-4646befae34d
Moved the X specific stuff in src/scr-x.c

git-svn-id: svn+ssh://svn.code.sf.net/p/yabause/code/trunk@3165 d7be59e3-070e-4b9a-85a1-4646befae34d