Add more get image info functions.

Add more get image info functions.

Add get image depth/channel data type/channel order/dim support.
Now, only those functions for the unsupported image type have not
been implemented. The unsupported image types are as below:
image1d_t,image1d_buffer_t,image1d_array_t,image2d_array_t.

Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>
Tested-by: Simon Richter <Simon.Richter@hogyros.de>