DDEV Provider

• Add example for a ddev provider
• Workaround Too many authentications issue. At least give advice how to handle these scenarios. (ddev auth ssh --ssh-key-path /path/to/single/key/pair/ or ddev auth ssh --ssh-key-file /path/to/key)
• Ensure files are updated not re-downloaded - Important for large storages
• What will happens if files/db are left over from a failed previous import??! Deal with it!
• Try to provide information if the connection to the Server failes.
• ⚠️ if mutagen or similar is used, we may want to do a "ddev restart" so all files are in sync