Added git_stamp package

[arononak]

https://github.com/arononak/git_stamp
https://pub.dev/packages/git_stamp

---

Checklist

• I read How to contribute
• I edited the SOURCE.md file only
• Added a link to the repo in the PR

---

Feel free to add this badge to your repository after it's accepted to awesome-flutter.

<a href="https://github.com/Solido/awesome-flutter">
   <img alt="Awesome Flutter" src="https://img.shields.io/badge/Awesome-Flutter-blue.svg?longCache=true&style=flat-square" />
</a>

[Hanzhafiz]

@Hanzhafiz

[arononak]

@Solido Could you merge ?

[Solido]

I've already done the same package 6 years ago
https://github.com/Solido/build_flutter_version

And yet it still not have enough traction because it is too pecular of a subject.

We aim to curage most useful resource only, not every package.

Best regards

[arononak]

I see that you came up with such a brilliant idea as me Xd
Mine package is much more developed and in constant development. New functionality is released every week.

[arononak]

@Solido code on Macron, give me a marge Xd