add melos and rebase project structure

cherrypick/CHANGELOG.md

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+# Changelog
+
+2.0.0  supported Dart 3.0
+
+---
+
+1.1.0  cheked support Dart 3.0
+
+---
+
+1.0.4  Fixed exception "ConcurrentModificationError"
+
+---
+
+1.0.3  Added provider with params
+
+---
+
+1.0.2  Updated doc and fixed syntax error
+
+---
+1.0.1  Fixed syntax error
+
+---
+1.0.0  Refactored code and added experimental api
+
+---
+
+0.1.2+1  Fixed initializtaion error
+
+---
+0.1.2  Fixed warnings in code
+
+---
+0.1.1+2  Updated libraries and fixed warnings
+
+---
+
+0.1.1+1  Updated pubspec and readme.md
+
+---
+
+0.1.1  Updated pubspec
+
+---
+
+0.1.0  Initial release
+
+---