ENH: comment unused Lua and Ruby wrappers

Code/Wrappers/SWIG/CMakeLists.txt

@@ -36,9 +36,9 @@ if ( WRAP_LUA OR WRAP_PYTHON OR WRAP_JAVA OR WRAP_CSHARP OR WRAP_TCL OR WRAP_R O
     ${CMAKE_CURRENT_SOURCE_DIR}/Java.i
 #    ${CMAKE_CURRENT_SOURCE_DIR}/CSharp.i
 #    ${CMAKE_CURRENT_SOURCE_DIR}/CSharpTypemapHelper.i
-    ${CMAKE_CURRENT_SOURCE_DIR}/Lua.i
+#    ${CMAKE_CURRENT_SOURCE_DIR}/Lua.i
 #    ${CMAKE_CURRENT_SOURCE_DIR}/Tcl.i
-    ${CMAKE_CURRENT_SOURCE_DIR}/Ruby.i
+#    ${CMAKE_CURRENT_SOURCE_DIR}/Ruby.i
     )
 
   set ( SWIG_MODULE_otbApplication_EXTRA_DEPS ${SWIG_HEADERS} )