fs: Add MimeTypeDirEntry to return the MimeType of a DirEntry
fs: Add MimeTypeDirEntry to return the MimeType of a DirEntry

olihey/rclone,B4dM4n/rclone,yonjah/rclone,olihey/rclone,ncw/rclone,B4dM4n/rclone,ncw/rclone,yonjah/rclone,ncw/rclone,B4dM4n/rclone,yonjah/rclone,olihey/rclone,B4dM4n/rclone,olihey/rclone,yonjah/rclone,ncw/rclone