added inventory, updated DB

inventory-service/property_categories.json

@@ -0,0 +1,30 @@
+{
+  "basic": {
+    "5": "encumbrance",
+    "19": "value",
+    "25": "level",
+    "28": "armor_level",
+    "44": "damage",
+    "45": "damage_type"
+  },
+  "requirements": {
+    "158": "wield_requirement",
+    "160": "wield_level",
+    "48": "weapon_skill"
+  },
+  "combat": {
+    "218103842": "max_damage",
+    "36": "resist_magic",
+    "56": "shield_value"
+  },
+  "display": {
+    "218103809": "icon",
+    "218103849": "icon_overlay",
+    "218103850": "icon_underlay"
+  },
+  "metadata": {
+    "218103808": "weenie_class_id",
+    "218103847": "physics_data_flags",
+    "218103831": "object_desc_flags"
+  }
+}