create team owned libs for billing, admin-console, platform (#7233)

* add admin-console lib files

* add billing lib files

* add platform lib files

* update lib references in config files

* update package-lock

libs/platform/package.json

@@ -0,0 +1,20 @@
+{
+  "name": "@bitwarden/platform",
+  "version": "0.0.0",
+  "description": "Common code used across Bitwarden JavaScript projects.",
+  "keywords": [
+    "bitwarden"
+  ],
+  "author": "Bitwarden Inc.",
+  "homepage": "https://bitwarden.com",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/bitwarden/clients"
+  },
+  "license": "GPL-3.0",
+  "scripts": {
+    "clean": "rimraf dist",
+    "build": "npm run clean && tsc",
+    "build:watch": "npm run clean && tsc -watch"
+  }
+}