adafruitms1438: Initial implementation

The library implements support for the Adafruit MotorShield 1438:
http://www.adafruit.com/products/1438

This shield supports 4 DC motors or 2 Stepper motors.

It makes use of the pca9685 UPM library, and therefore requires that
PR #123 and PR #134 are merged first:

PR 123: pkgconfig.in: allow a module to specify dependencies on
another module

PR 134: pca9685: Initial implementation

Signed-off-by: Jon Trulson <jtrulson@ics.com>
Signed-off-by: Zion Orent <zorent@ics.com>
Signed-off-by: Mihai Tudor Panu <mihai.tudor.panu@intel.com>

src/adafruitms1438/pyupm_adafruitms1438.i

@@ -0,0 +1,13 @@
+%module pyupm_adafruitms1438
+%include "../upm.i"
+
+%feature("autodoc", "3");
+
+#ifdef DOXYGEN
+%include "adafruitms1438_doc.i"
+#endif
+
+%include "adafruitms1438.h"
+%{
+    #include "adafruitms1438.h"
+%}