Burn the Witch! (Then heal them)

Implements the last two mystic roles; Witch and the Healer.

According to the rulesheet, the healer may not save anybody if they are
destined to die, even if they try to target another player to heal and
still have powers.
Bloodsucking vampires

Implements Igor, Vampire and the Vampire Hunter.
Also had to implement Romeo to be sure that he is protected too.