Working on Skills and some fixes

- Added Skills to character sheet
- Added migration to old skills
- Added icon on skills
- Added actor.isNpc
- Money out of system

system/scripts/actors/base-character-sheet.js

@@ -230,6 +230,10 @@ export class BaseCharacterSheetL5r5e extends BaseSheetL5r5e {
                 itemData = item.toObject(true);
                 break;
 
+            case "skill":
+                itemData.system.rank = 0;
+                break;
+
             case "technique":
                 // School_ability and mastery_ability, allow only 1 per type
                 if (CONFIG.l5r5e.techniques.get(itemData.system.technique_type)?.type === "school") {