Vampirism feat Surges wrong for several classes

[thoth-process]

After an audit of the feat "Vampirism", I found the following errors:

• Hybrid Blackguard and Hybrid Paladin have half-point="true" incorrectly.
• Ranger (Scout) is subtracting the wrong number of surges by 1
• 7 Essentials classes are missing from the feat, and thus do not reduce surges AT ALL: Berserker, Skald, Protector, Elementalist, Bladesinger, Sha'ir, and Witch.