Font cleanup step 1: * alt8x8 - completely broken encoding. * atari-small - ASCII...

Font cleanup step 1: * alt8x8 - completely broken encoding. * atari-small - ASCII only, not used by any theme. * clR6x8-8859-2 - integrated into rockbox_default. * courB* - not used by any theme. * Hebrew-* - bad unicode coverage, essentially unused. * ter-u??v - 'EGA/VGA bold' versions of ter-u??b, meaningless in rockbox. * timR08 - not used by any theme. * uwe_prop - proportional is a slightly improved version of that.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18381 a1c6a512-1295-4272-9138-f99709370657