cmake: Install config-module.
cmake: Install config-module.

Allow the libraries to be found with

    find_package(iir)

then used with

    target_link_libraries(... iir::iir)

or

    target_link_libraries(... iir::iir_static)

berndporr/iir1,berndporr/iir1,berndporr/iir1,berndporr/iir1