shared_preferences_tizen 2.0.0

Tizen implementation of the shared_preferences plugin

1.0.0

• Initial release

1.0.1

• Update shared_preferences to 0.5.12+4
• Update platform interface to 1.0.4
• Migrate to Tizen 4.0

2.0.0

• Update Dart and Flutter SDK constraints
• Update Flutter copyright information
• Update example and integration_test
• Update platform interface to 2.0.0
• Organize dev_dependencies
• Migrate to ffi 1.0.0
• Migrate to null safety
• Remove unused PreferenceIsExisiting from the implementation