Bottom/Top sheet onStateChanged callback support implemented

In this version, you can be notified when sheet state changed.

AndroidX Migration

This library has been migrated to AndroidX at v1.1

Minor refactoring

1.0.2

Minor variableName refactoring

Top and Bottom sheet behavior is now accessible from outside

1.0.1

Bottom and Top sheet behavior is now accessible to modify

Initial Release

1.0

Create README.md