[Guide] Overclock BIOS mods for Chinese X99 MBs

You are all receiving this notification based on your previous interest in improving Machinist X99 B9 / X99D4M4. I am proud to announce that this very ok-ish motherboard finally has a very decent BIOS available that works with the problematic XMC flash chip. In essence:

@RoyFAR @mpamplona @slxxp.lzh @Maurivillas @Omnitrix @ays @grinna @WalkerPE @Xzen