VGA: Optimize copper bar generator by generating it once then replaying the palette. Update raster VGA test for MCGA
VGA: Optimize copper bar generator by generating it once then replaying the palette. Update raster VGA test for MCGA

joncampbell123/doslib,joncampbell123/doslib,joncampbell123/doslib,joncampbell123/doslib,joncampbell123/doslib,joncampbell123/doslib