Start implementing support for mutaplasmids.

* There's a new table `mutators` that has an FK back to a module, and links to an attribute ID with it's new value
* Fixes an issue in the item state where the "base" value showed the literal base value for the attribute, regardless of override / mutators
* If there is an override and a mutated attribute, mutated value takes effect

eos/db/__init__.py

@@ -77,7 +77,7 @@ sd_lock = threading.RLock()
 from eos.db.gamedata import alphaClones, attribute, category, effect, group, icon, item, marketGroup, metaData, metaGroup, queries, traits, unit
 # noinspection PyPep8
 from eos.db.saveddata import booster, cargo, character, damagePattern, databaseRepair, drone, fighter, fit, implant, implantSet, loadDefaultDatabaseValues, \
-    miscData, module, override, price, queries, skill, targetResists, user
+    miscData, mutator, module, override, price, queries, skill, targetResists, user
 
 # Import queries
 # noinspection PyPep8