Fast deploy

Some re-factoring done on the mobile deployment. The API for the deployment remained the same but the structures used by the Mobile Deploy are a little bit more structured now.

The deployment flow is not independent of the deployment way the user choose, which makes it more scable and easy to maintain.
Could you create `List<int> _buildHttpRequest(String httpMethod, String target, String path, {List<int> payload})`
`httpMethod` would be `GET` or `POST` for now.