cellFont rendering functions

-Now, all the games using rendering text using
cellFontRenderCharGlyphImage and all the related functions should work,
or at least don't crash.

-There are still issues with the character position on surface, and in
some cases, it renders the text with a different font than the one the
game specified. A lot of cellFont stuff is still missing or may be not
properly implemented.

-For games using system-embedded fontsets you have to find a *legal* way
to copy the .TTF files from your PS3 into dev_flash/data/font.