Configuration Enhancements and bug fixes

This adds configuration entries for the RF costs of most of the RF consuming machines for people who want cheaper or more expensive machines. The default costs should be the same. It also fixes the Blood Magic and Botainia blocks not obeying the config when disabled and causing an issue because they still attempt to register with a null block.

It adds a Voidmetal capped Energized Wand.

In addition it fixes an issue with the Mana Fabricator that caused it to generate infinite mana, and an issue which caused coils to void essentia if the destination is full.

Sorry to include new functionality and bug fixes in the same pull request. Let me know if you need them broken apart and I will resubmit as multiple requests.