cpp_headers: Renamed C++ headers from .h -> .hpp

To make room for UPM C and C++ sensor code to coexist, all UPM
C++ headers have been renamed from h -> hpp.  This commit contains
updates to documentation, includes, cmake collateral, examples, and
swig interface files.

    * Renamed all cxx/cpp header files which contain the string
    'copyright intel' from .h -> .hpp (if not already hpp).

    * Replaced all references to .h with .hpp in documentation,
    source files, cmake collateral, example code, and swig interface
    files.

    * Replaced cmake variable module_h with module_hpp.

    * Intentionally left upm.h since this file currently does not
    contain code (documentation only).

Signed-off-by: Noel Eck <noel.eck@intel.com>

src/adxl335/CMakeLists.txt

@@ -1,5 +1,5 @@
 set (libname "adxl335")
 set (libdescription "upm adxl335 grove 3-axis anaolog accelerometer")
 set (module_src ${libname}.cxx)
-set (module_h ${libname}.h)
+set (module_hpp ${libname}.hpp)
 upm_module_init()

src/adxl335/adxl335.cxx

@@ -29,7 +29,7 @@
 #include <string>
 #include <stdexcept>
 
-#include "adxl335.h"
+#include "adxl335.hpp"
 
 using namespace std;
 using namespace upm;

src/adxl335/javaupm_adxl335.i

@@ -7,7 +7,7 @@
 %apply float *OUTPUT { float *xAccel, float *yAccel, float *zAccel  };
 
 %{
-    #include "adxl335.h"
+    #include "adxl335.hpp"
 %}
 
 %typemap(jni) float* "jfloatArray"
@@ -40,7 +40,7 @@
 %ignore values(int *, int *, int *);
 %ignore acceleration(float *, float *, float *);
 
-%include "adxl335.h"
+%include "adxl335.hpp"
 
 %pragma(java) jniclasscode=%{
     static {

src/adxl335/jsupm_adxl335.i

@@ -6,7 +6,7 @@
 %pointer_functions(float, floatPointer);
 
 %{
-    #include "adxl335.h"
+    #include "adxl335.hpp"
 %}
 
-%include "adxl335.h"
+%include "adxl335.hpp"

src/adxl335/pyupm_adxl335.i

@@ -9,7 +9,7 @@
 
 %feature("autodoc", "3");
 
-%include "adxl335.h"
+%include "adxl335.hpp"
 %{
-    #include "adxl335.h"
+    #include "adxl335.hpp"
 %}