G&W Crab Grab has now been preserved in MAME

With this game completed, both games in the Super Color series (Spitball Sparky and Crab Grab) are now supported in MAME. I think this is the first time this game gets emulated/simulated.
This game uses similar hardware as Spitball Sparky: an SM510 MCU and an LCD screen with the same dimensions as the table top games.
This is a screenshot from the game:
![[Linked Image from i.imgur.com]](https://i.imgur.com/fCksg9T.png)
Scans of the game case, LCD inlays and some photos of the game has been uploaded to the
dropbox dir.
Big thanks to JustDesserts for lending out the game!