SaveGame Manager GX r049

by dj_skual, Giantpune
Install/Extract saved game files. Based on Waninkoko's SaveGame Manager.

CHANGELOG r049
==============
-added getNandName() fonction to get the real wii utf-16 encoding (will see
later for utf-16 fix)
-added subname to savegame struct for later use
-added getTitleSubName() fonction to get subname for save on device
-added subname to browserdevice struct for later use
-The device browser display now only directories and saves (other files are not
needed)
-the language files are now downloaded on google instead of my server

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