mc1502: re-add speaker output
mc1502: add more ROMs
Start converting the various Hard Drivin' board types to be devices, allowing me to add the 2 additional video boards to Race Drivin' Panorama.

This brings Race Drivin' Panorama to within an inch of working, however there seems to be what I think is a core bug with partial updates on anything except the primary screen, meaning the other screens fail to update properly.  It isn't a communicaiton issue ,as you can swap the screens around and get the other screens updating smoothly instead, it just doesn't seem to want to update the screen when it should.  With a tiny bit more work this could be marked as working.

Also added default eeproms for each of the sub-boards with the views correctly setup.
new clones
Oriental Legend 2 (V101, China) [bytestorm] (not working)
Knights of Valour 2 New Legend (V300, Taiwan) [bytestorm] (not working)
Build fixes for Emscripten (nw)
Merge pull request #36 from shattered/_fec7fc0

mc1502: re-add speaker output, add more BIOS versions
(MESS) victor9k: Floppy WIP. (nw)
added fatalerror for unsupported FBSize in RDP (nw)

happens with e.g. n64 -cart blastcrpu1
Backport MBC1COL detector from GoodGBx
Fix Typo
Some Updates (NW)
Merge branch 'master' of https://github.com/mamedev/mame
try 2 - Backport MBC1COL detection from GoodGBx
enabled the RDP range checks by default for now (nw)

this reports some out-of-bounds accesses only ubsan would report
otherwise - happens with e.g. n64 -cart nbaliv99u
Fixed MT04990 (nw)
bit of a driver specific hack to work around what seems to be a core problem when you have multiple screens of different refresh rates and partial updates.

not marked the game as working yet because the side screens seem to crash when you pick the roadster
Update README.md

Update of readme
notes
(mess) pc9801: pipe bitmap 7220 vram access though grcg, enable ready line which fixes disk change detection (nw)
---
Also disabled reads while grcg is in rmw mode, this I'm not 100% certain about and needs more testing.