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/tm1637/CMakeLists.txt

@@ -1,5 +1,5 @@
 set (libname "tm1637")
 set (libdescription "C++ API for the TM1637 7-segment display")
 set (module_src ${libname}.cxx)
-set (module_h ${libname}.h)
+set (module_hpp ${libname}.hpp)
 upm_module_init()

src/tm1637/javaupm_tm1637.i

@@ -11,10 +11,10 @@
 %apply uint8_t *INPUT { uint8_t *digits }
 
 %{
-    #include "tm1637.h"
+    #include "tm1637.hpp"
 %}
 
-%include "tm1637.h"
+%include "tm1637.hpp"
 
 
 %pragma(java) jniclasscode=%{

src/tm1637/jsupm_tm1637.i

@@ -8,8 +8,8 @@
 %rename("writeString") write(std::string digits);
 
 %{
-    #include "tm1637.h"
+    #include "tm1637.hpp"
 %}
 
-%include "tm1637.h"
+%include "tm1637.hpp"
 

src/tm1637/pyupm_tm1637.i

@@ -7,6 +7,6 @@
 %varargs(4, int digit = 0) write;
 
 %{
-    #include "tm1637.h"
+    #include "tm1637.hpp"
 %}
-%include "tm1637.h"
+%include "tm1637.hpp"

src/tm1637/tm1637.cxx

@@ -24,7 +24,7 @@
 
 #include <string>
 #include <stdexcept>
-#include "tm1637.h"
+#include "tm1637.hpp"
 #include <stdarg.h>
 
 const uint8_t m_brkt[2]  = {0x39, 0x0f};