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/t3311/CMakeLists.txt

@@ -1,7 +1,7 @@
 set (libname "t3311")
 set (libdescription "upm module for the Comet System T3311")
 set (module_src ${libname}.cxx)
-set (module_h ${libname}.h)
+set (module_hpp ${libname}.hpp)
 
 pkg_search_module(MODBUS libmodbus)
 if (MODBUS_FOUND)

src/t3311/javaupm_t3311.i

@@ -6,10 +6,10 @@
 %include "../java_buffer.i"
 
 %{
-    #include "t3311.h"
+    #include "t3311.hpp"
 %}
 
-%include "t3311.h"
+%include "t3311.hpp"
 
 %pragma(java) jniclasscode=%{
     static {

src/t3311/jsupm_t3311.i

@@ -5,7 +5,7 @@
 
 %pointer_functions(float, floatp);
 
-%include "t3311.h"
+%include "t3311.hpp"
 %{
-    #include "t3311.h"
+    #include "t3311.hpp"
 %}

src/t3311/pyupm_t3311.i

@@ -9,7 +9,7 @@
 
 %pointer_functions(float, floatp);
 
-%include "t3311.h"
+%include "t3311.hpp"
 %{
-    #include "t3311.h"
+    #include "t3311.hpp"
 %}

src/t3311/t3311.cxx

@@ -29,7 +29,7 @@
 #include <sstream>
 #include <pthread.h>
 
-#include "t3311.h"
+#include "t3311.hpp"
 
 using namespace upm;
 using namespace std;