flutter_heic_to_jpg_platform_interface library

1. flutter_heic_to_jpg package
2. documentation
3. flutter_heic_to_jpg_platform_interface.dart

flutter_heic_to_jpg package

1. Libraries
2. flutter_heic_to_jpg
3. flutter_heic_to_jpg_method_channel
4. flutter_heic_to_jpg_platform_interface