Fibercraft Add-on for the Witchery Mod

This is the first release of this as an add-on.  The changes listed are those from it's release in Fibercraft 6.0 to this version:

- Added wolf charm, moon charm, new potion bottles, mutton, silver dust, earmuffs, new books, biome notes, Leonard’s urn, horn of the hunt,
- Corrected circle magic & symbology book covers

Mobs Added:

- death
- spectre