feat: implement annotations

cherrypick_generator/pubspec.yaml

@@ -0,0 +1,18 @@
+name: cherrypick_generator
+description: Code generator for cherrypick annotations
+version: 1.0.0
+# repository: https://github.com/my_org/my_repo
+
+environment:
+  sdk: ^3.5.2
+
+# Add regular dependencies here.
+dependencies:
+  build: ^2.0.0
+  source_gen: ^1.0.0
+  cherrypick_annotations: any
+
+dev_dependencies:
+  lints: ^4.0.0
+  test: ^1.24.0
+  build_runner: ^2.1.0