CD to pub.dev

[guyluz11]

To do CD from this repo to pub.dev we need to create a release for each new version and add the version as a tag to it

https://dart.dev/tools/pub/automated-publishing#configuring-automated-publishing-from-github-actions-on-pub-dev

https://stackoverflow.com/questions/18216991/create-a-tag-in-a-github-repository

[guyluz11]

Gitting error in the process, all log can be found in the git action

82 checked-in files are ignored by a `.gitignore`.
  Previous versions of Pub would include those in the published package.
  
  Consider adjusting your `.gitignore` files to not ignore those files, and if you do not wish to
  publish these files use `.pubignore`. See also dart.dev/go/pubignore
  
  Files that are checked in while gitignored:
  
  example/.gitignore
  example/.metadata
  example/README.md
  example/analysis_options.yaml
  example/android/.gitignore
  example/android/app/build.gradle
  example/android/app/src/debug/AndroidManifest.xml
  example/android/app/src/main/AndroidManifest.xml
  example/android/app/src/main/java/com/harnesher/tizen/tizen/MainActivity.java
  example/android/app/src/main/res/drawable-v21/launch_background.xml
  ...
  
Package has 1 warning.
The server may enforce additional checks.
Error: Process completed with exit code 65.

[guyluz11]

I have fixed the flutter required part but the tag does not start a GitHub action build.