fix: Codegens house/vendors (#1767)

### Summary
- Cleans up ShardPoller
- Breaks up player vendor file
- Codegens houses/vendors

Projects/UOContent/Migrations/Server.Items.HouseTeleporter.v2.json

@@ -0,0 +1,16 @@
+{
+  "version": 2,
+  "type": "Server.Items.HouseTeleporter",
+  "properties": [
+    {
+      "name": "Level",
+      "type": "Server.Multis.SecureLevel",
+      "rule": "EnumMigrationRule"
+    },
+    {
+      "name": "Target",
+      "type": "Server.Item",
+      "rule": "SerializableInterfaceMigrationRule"
+    }
+  ]
+}