add sorting directories as files
move picross files to a hidden folder
use directory for lua_scripts, sgt_puzzles
make plugin browser able to handle 1st level directories
Change-Id: I30852d71dc992c378d5790756e94f06f5a2e9bef
Picross is a puzzle game also known as Picture Crossword, Nonograms, or
Paint By Numbers. See http://en.wikipedia.org/wiki/Nonogram for
information on how to play.
Update 1: nicer graphics with less images, fixed directory listing,
changed how the board works to make a lot of math more sane
Update 2: added missing rb.yield to viewPicture loop
Update 3: you can now save a game in progress
Update 4: fixed a file pointer leak, improved the numbers font
Update 5: no images, use vector num draw library add zoom, freedraw -- Bilgus
Change-Id: Idc476b46b6eaa10818400fa789701d5bac83467f
