This commit touches a subset of UPM sensors which contain C source.
Cleaned up the CMakeLists.txt DESCRIPTION field to better represent
the library.
Signed-off-by: Noel Eck <noel.eck@intel.com>
This change makes sure all necessary grove images exist where
applicable. Also removed executable attribute from jpgs.
led sensor points to led.jpg.
Signed-off-by: Noel Eck <noel.eck@intel.com>