Add attribute handling, rework atr and shape caches.

schemas/structs/meta_atr.json

@@ -0,0 +1,27 @@
+{
+    "$schema": "https://json-schema.org/draft/2020-12/schema",
+    "type": "object",
+    "properties": {
+        "Entry": {
+            "type": "boolean"
+        },
+        "Slot": {
+            "$ref": "meta_enums.json#HumanSlot"
+        },
+        "Id": {
+            "$ref": "meta_enums.json#U16"
+        },
+        "Attribute": {
+            "type": "string",
+            "minLength": 5,
+            "maxLength": 30,
+            "pattern": "^atrx_"
+        },
+        "GenderRaceCondition": {
+            "enum":  [ 0, 101, 201, 301, 401, 501, 601, 701, 801, 901, 1001, 1101, 1201, 1301, 1401, 1501, 1601, 1701, 1801 ]
+        }
+    },
+    "required": [
+        "Attribute"
+    ]
+}