Added complex deploy and build strategies :
- Build magento only in a git repo containing magento and pwa-studio directory
- Build pwa-studio only in a git repo containing magento and pwa-studio directory
- deploy magento only in a git repo containing magento and pwa-studio directory
- deploy pwa-studio only in a git repo containing magento and pwa-studio directory
- Deploy magento and pwa-studio to different servers from one git repo.