raise MAX_ADJOINING_SECTORS limit
fix Medusa effect

by replacing R_DrawColumnInCache(), R_GenerateComposite()
and R_GenerateLookup() in src/doom/r_data.c with
Lee Killoughs implementation from (Win)MBF
fix Tutti Frutti effect

by replacing R_DrawColumn() in src/doom/r_draw.c with
Lee Killoughs implementation from (Win)MBF