v0.2.0 of molc

A Flutter state management package separating UI state Models from business Logic. Changelog excerpt: ### Breaking changes - Bumped SDK constraints to Dart >=3.0.0 <4.0.0and Flutter >=3.7.0. - Removed the providerpackage dependency. MoLc now uses Flutter's native inherited widget mechanism internally. - lib/molc.dartno longer re-exports provider APIs such as ChangeNotifierProvider, ReadContext, WatchContext, or MultiProvider. Use MoLc's native MoNotifierProvider, MoProvider, MoMultiProvider, context.read(), and context.watch()APIs instead. - `TopProvider.provider[...]