(MESS) Rainbow updates:
* add beeper, NVRAM. LED output for keyboard, Z80 and 8088 [Bavarese]
* correct NVRAM mirroring [R. Belmont]
* DC012 48 line mode. 3 new character attributes (reverse, blink, underline) [Bavarese]



git-svn-id: svn://dspnet.fr/mame/trunk@24980 749742ba-7341-0410-aadc-df50b521781e
HISCORE DIFF's for all MAME versions without hiscore support

The diff performs the following:
1) Adds hiscore support back into MAME
2) Removes all nag screens
3) Removes loading messages (decoding/decrypting/Updating Artwork, etc.) and the 'white box' when loading.

 Add the following to the mame.ini file to disable the appropiate patch section:

disable_hiscore_patch   1   <- To disable highscore support. Set to 0 or omit it entirely from ini file to enable.
disable_nagscreen_patch   1  <- To disable removal of nagscreens /white box. Set to 0 or omit it entirely from ini file to enable.
disable_loading_patch   1      <- To disable suppresssion of loading/decypting/etc messages. Set to 0 or omit it entirely from ini file to enable.
Adding the GroovyMame's patch