future_manager 1.3.0

ValueNotifier and ValueListenableBuilder but for asynchronous value.

[1.3.0] - 18 January 2023

• Internal source code architecture changed, No Breaking change

[1.2.0] - 6 January 2023

• add onReadyOnce method to FutureManagerBuilder

[1.1.0] - 15 November 2022

• add build method to FutureManager

[1.0.1] - 7 September 2022

• Update pubspec.yaml

[1.0.0+1] - 25 August 2022

• Update pubspec.yaml

[1.0.0] - 1 July 2022

• Rename some field and attribute
• update README and Example
• stable release

[0.0.1] - 1 July 2022

• Initial release