Widen LineWeight Selector.

Imagemagick: convert lineweight*.png -strip -resize 512x128\! lineweight*.png
Require Minimum WVGA.
libembroidery arduino fixes and additions.
libembroidery arduino barebones example.
Update URL.
Update TODO file.
embFormatList (finishing C side)

running well, I make deal with C syntax.
Delphi side has not yet reflects to this change.
Merge remote-tracking branch 'upstream/master'