support bmp image

fix bug when activity destroy

1. Refactor with kotlin
2. Optimized image load logic
3. Bug fixed

1. Refactor with kotlin
2. Optimized image load logic

1. support select gif
2. update image preview and select logic
3. optimize UI

1. fix bug when single choose picture
2. fix bug when photo dir not exist
3. add english support

remove Provider in lib Manifest

1. remove RxJava
2. adjust single choose
3. adjust camera UI

1. fix bug in when select image size is empty
2. update gradle version to 3.3