Tainted Scholar enhancements

No secret is barred from the Tainted Scholar's grasp, and if such forbidden knowledge comes at the cost of his soul, he's willing to pay that price.

Notable Enhancements:
 * Eldritch Blast Shape: Chain
 * Eldritch Essences that alter how Eldritch Blast work
 * Direct damage boosting of Eldritch Blast
 * Crowd Control, including a new Confusion ability that causes enemies to attack player and monster characters indiscriminately.