ENH: Install cpack files

Templates/CMakeLists.txt

@@ -1,5 +1,6 @@
 # just install the modules
 INSTALL_FILES(${CMAKE_DATA_DIR}/Templates .*\\.in)
+INSTALL_FILES(${CMAKE_DATA_DIR}/Templates .*\\.txt)
 INSTALL_FILES(${CMAKE_DATA_DIR}/Templates .*\\.cmake$)
 INSTALL_FILES(${CMAKE_DATA_DIR}/Templates .*\\.dsptemplate$)