first commit and create branch
add new image source
add user permission and feature tag
add source, can be write string to file
add source, can be save video file
remove implements SurfaceHolder.Callback
modify gitignore
Merge branch 'Niel-developer'
add function, can get read recorded video.
Merge branch 'Niel-Developer-VideoList'
add playback function
Merge branch 'Niel-Developer-VideoPlay'
fix project