groveo2: initial implementation

This implements support for the Grove O2 (oxygen) sensor.

Keeping with the current convention, as well as the current
config Doxygen uses disallowing uppercase names, this sensor
has been renamed from groveO2 to groveo2 for both files and
folders.

Signed-off-by: Zion Orent <zorent@ics.com>
Signed-off-by: Jon Trulson <jtrulson@ics.com>
Signed-off-by: John Van Drasek <john.r.van.drasek@intel.com>

src/groveo2/pyupm_groveo2.i

@@ -0,0 +1,9 @@
+%module pyupm_groveo2
+%include "../upm.i"
+
+%feature("autodoc", "3");
+
+%include "groveo2.h"
+%{
+    #include "groveo2.h"
+%}