Professions exporter

- Add options (Interface -> Add-ons)
- Add specialization id and name (only tested with mooncloth)
- Add description (only for enchanting)
- Add spell id
- Add texture (for items, so enchanting don't have texture, even for item crafted with enchanting)
- Add number of items produce
- Removing most space and line return in the export
- Remove items color (enchant have same color) and id from enchanting (id was spell id, not item's id, so it's juste a name change id->spellId)