Appollo

Changelog
- CLI: Fixed remote desktop url

Changelog
- CLI: Exclude unnecessary directories when sending code
- CLI: Check if the directory to upload is a flutter directory
- CLI: Bug fixes

Changelog
- CLI : Added choice picker for some options when no value was provided
- Documentation : Improved and finished a first version of the tutorial
- Documentation : Removed the Usage section
- CLI : While building added a "progress bar" to show the progress of the build in realtime
- CLI : Minor improvements and cleanup of the code
- CLI : Added a GIF showing a quick Appollo demo
- CLI : Added flutter version list
- CLI : Added more precise build progress status