GitLab

When the video controller is V_UNKNOWN (ie.not a VIDC) then an attempt will be made to validate the desired bpp via GraphicsV.That way,when the screen modes are enumerated only achievable ones are returned.

Also added an iconsprites command to the loadmodefile command,so that
if a sprite file exists in the same dir as the MDF it can override the
default display manager icon.

Version 0.30. Tagged as 'ScrModes-0_30'