ENH: Adding install of .in and .c modules.

Modules/CMakeLists.txt

@@ -1,3 +1,6 @@
 # just install the modules
 INSTALL_FILES(/share/CMake/Modules .*\\.cmake$)
 INSTALL_FILES(/share/CMake/Modules .*\\.cxx$)
+INSTALL_FILES(/share/CMake/Modules .*\\.in$)
+INSTALL_FILES(/share/CMake/Modules .*\\.c$)
+