RESOLVES FRMW-2862
**What**
This PR enable the `create-medusa-app` CLI to accept a new `--plugin` option to scaffold a plugin. This is complementary to all the plugin commands being created/adjusted separately to that pr.
Also, this pr brings a little refactoring around resource scaffolding, the idea was to contain the refactoring to a little area and not expend it to the entire create-medusa-app package to not disrupt and expand the scope for which the purpose was to introduce the plugin scaffolding capabilities
**Addition**
- medusa project will get their package.json name changed to the project name
- Remove build step from medusa project creation
**Plugin flow**
- in the plugin
- `npx create-medsa-app --plugin`
- `yarn dev`
- in the project
- `yalc add plugin-name`
- `yarn dev`
Any changes on the plugin will publish, push in the local registry which will fire the hot reload of the app and include the new changes from the plugin
c895ed8013