Feat(medusa, cli): plugin db generate (#10988)

RESOLVES FRMW-2875

**What**
Allow to generate migration for plugins. Migration generation defer from project migration generation and therefore we choose to separate responsibility entirely.

The flow is fairly simple, the user run `npx medusa plugin:db:generate` and the script will scan for all available modules in the plugins, gather their models information and generate the appropriate migrations and snapshot (for later generation)

Co-authored-by: Harminder Virk <1706381+thetutlage@users.noreply.github.com>

packages/medusa/package.json

@@ -40,7 +40,8 @@
     "watch": "tsc --build --watch",
     "build": "rimraf dist && tsc --build",
     "serve": "node dist/app.js",
-    "test": "jest --silent=false --bail --maxWorkers=50% --forceExit"
+    "test": "jest --runInBand --bail --forceExit --testPathIgnorePatterns='/integration-tests/' -- src/**/__tests__/**/*.ts",
+    "test:integration": "jest --forceExit -- src/**/integration-tests/**/__tests__/**/*.ts"
   },
   "devDependencies": {
     "@medusajs/framework": "^2.2.0",