Implement complete mayr_events package v1.0.0 with comprehensive documentation and testing

Author: YoungMayor

.gitignore

@@ -24,6 +24,7 @@ migrate_working_dir/
 # Flutter/Dart/Pub related
 # Libraries should not include pubspec.lock, per https://dart.dev/guides/libraries/private-files#pubspeclock.
 /pubspec.lock
+/example/pubspec.lock
 **/doc/api/
 .dart_tool/
 .flutter-plugins-dependencies