264 - Action Feature Swap (#265)

* Removed action fields on Adversary/Environment in favor of using Feature Items

* Added drag/drop for features onto adversary/environment settings

* Added Drag of features from Adversary/Environment settings to anywhere in Foundry

* Updated all item types except Class/Subclass

* Added for Class/Subclass

* Items now copy over their features to Character

* Corrected back to actions for right items

* Fixed adversary/environment features display

* PR Fixes

module/data/item/feature.mjs

@@ -16,6 +16,9 @@ export default class DHFeature extends BaseDataItem {
         const fields = foundry.data.fields;
         return {
             ...super.defineSchema(),
+            type: new fields.StringField({ choices: CONFIG.DH.ITEM.featureTypes, nullable: true, initial: null }),
+            originId: new fields.StringField({ nullable: true, initial: null }),
+            identifier: new fields.StringField(),
             actions: new fields.ArrayField(new ActionField())
         };
     }