an_lifecycle_cancellable 0.0.4

After merging Lifecycle and Cancellable, the toolkit provided in flutter

0.0.4

• Migration of Listenable extensions.
• Adding a new launch to the lifecycle (executed only once).
• Added extension lifecycleExtData, which can store data based on the lifecycle and automatically clean it up upon destroy.

0.0.3

• fix bug whenMoreThanState

0.0.2

• export dialog/dialog_ext.dart

0.0.1

• The first version migration is completed