regtools: add new reg dumps from various targets

Change-Id: I289f03a8404c6aa8ec2ff94a8a0a3118fd3c7456
YH820: game fix and improvements

* sudoku: make colour icons (without screen was squeezed)
* jewels: add colour bitmaps
* pegbox: make game fit on screen (add small header bitmap),
  improve keymap

I left the original pegbox keymaps for samsung's YH-92x,
because they seem to make some sense there (YH92x has a
REC switch instead of pushbutton).
Someone with a YH9xx target has to check what is better...

Change-Id: Id388c9d69e4a5a1d8ad4c3d7a05cdfc1dff0d06c
Reviewed-on: http://gerrit.rockbox.org/816
Reviewed-by: Szymon Dziok <b0hoon@o2.pl>
Tested: Szymon Dziok <b0hoon@o2.pl>
SVG image of the Creative Zen Xfi and other formats for the manual.

Change-Id: I4c0f0b3549c9e6205f610706d95a2807b13a97a6
Reviewed-on: http://gerrit.rockbox.org/825
Reviewed-by: Amaury Pouly <amaury.pouly@gmail.com>
SVG image of the Creative Zen MX and other formats for the manual.

Change-Id: I2481f8d02822b65f3274ddc394b2498e6e30c5b3
Reviewed-on: http://gerrit.rockbox.org/836
Reviewed-by: Amaury Pouly <amaury.pouly@gmail.com>
recording on Samsung YH-820/YH-92x

Change-Id: I6eac4cf6c16a322910ad17bfbf3105e330cd0e36
Reviewed-on: http://gerrit.rockbox.org/815
Reviewed-by: Szymon Dziok <b0hoon@o2.pl>
Tested: Szymon Dziok <b0hoon@o2.pl>
skin_engine: Don't double free buflib handles shared by skin images

Change-Id: I4158fb7dae664a746141f458c08bdcb84e148041
fix indenting, editor went nuts

Change-Id: Ibe363e5c75260f50c6c6c6fc58a2758a7902ffc3