nodejs: cmake updates to more thoroughly check Node.js configuration

Signed-off-by: Henry Bruce <henry.bruce@intel.com>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>

src/javascript/CMakeLists.txt

@@ -1,4 +1,7 @@
-find_package (Nodejs)
+find_package (Nodejs REQUIRED)
+if (NOT Nodejs_FOUND)
+  message(ERROR " - Nodejs not found")
+endif()
 
 include_directories (
   ${NODE_INCLUDE_DIRS}