Implement the majority of functions in sceCcc

With this, the full-width characters in Adventures To Go actually convert correctly.  I don't have any other games to test these funcs with.

Accept hrydgard/native#98 first.

Other games this may improve, probably only slightly:
 * [Ape Escape Academy 2] (http://report.ppsspp.org/logs/game/UCAS40052_1.00)
 * [METAL SLUG Anthology] (http://report.ppsspp.org/logs/game/ULUS10154_1.03) / [METAL SLUG Complete] (http://report.ppsspp.org/logs/game/ULJS00090_1.06)
 * [RIDGE RACER 2] (http://report.ppsspp.org/logs/game/UCES00422_1.00)
 * [Mystic Chronicles] (http://report.ppsspp.org/logs/game/NPUH10189_1.03)
 * [Corpse Party] (http://report.ppsspp.org/logs/game/ULJM05704_1.03)
 * [Akiba's Trip] (http://report.ppsspp.org/logs/game/NPJH50412_1.07)
 * [Patapon 3] (http://report.ppsspp.org/logs/game/UCAS40318_1.00)
 * [Super Robot Taisen 2nd] (http://report.ppsspp.org/logs/game/ULJS00460_1.01)
 * [One Piece: Romance Dawn] (http://report.ppsspp.org/logs/game/NPJH50679_1.01)
 * [Yu-Gi-Oh! 5D's Tag Force5] (http://report.ppsspp.org/logs/game/ULUS10555_1.00)
 * [God of War] (http://report.ppsspp.org/logs/game/UCAS40198_1.00)
 * [Trails in the Sky] (http://report.ppsspp.org/logs/game/ULUS10540_1.00) (somewhere...)

Among others.

-[Unknown]