Add some common camera's control: VIDEO_CID_CAMERA_EXPOSURE_AUTO,
VIDEO_CID_CAMERA_GAIN_AUTO, VIDEO_CID_CAMERA_WHITE_BAL_AUTO,
VIDEO_CID_JPEG_COMPRESSION_QUALITY

Signed-off-by: Lee Jackson <lee.jackson@arducam.com>

Adding frame length and fragmented frame status to indicate certain
information about the frame when the video buffer is smaller than
the frame length.

Signed-off-by: Lee Jackson <lee.jackson@arducam.com>

The Arducam mega is an low power, rolling shutter camera,
support connect one or more cameras any Microcontroller.
It provides high-quality image capture and processing
capabilities, making it highly suitable for various
application fields, including machine vision, image
recognition, and robotics, among others.

Signed-off-by: Lee Jackson <lee.jackson@arducam.com>

This example is a full-featured sample for the Arducam Mega camera
driver. By using serial communication with a PC software, it can
capture images, display them, and also control camera settings
such as exposure and gain.

Signed-off-by: Lee Jackson <lee.jackson@arducam.com>