refactor: Restructure mounting and PCB data into modular files, adding new armpitmfg options and updating data references.

website/src/data/components/mounting/index.js

@@ -0,0 +1,13 @@
+import ossm from './ossm.json';
+import armpitmfg from './armpitmfg.json';
+
+export default {
+    "mounting": {
+        "category": "Mounting",
+        "type": "base",
+        "systems": {
+            ...ossm,
+            ...armpitmfg
+        }
+    }
+};