Simplify CreateStyleHeader CMake utility

endfunction(FindStyleHeadersExt)

function(CreateStyleHeader path filename)

    math(EXPR N "${ARGC}-2")

    set(temp "")

    if(N GREATER 0)

        math(EXPR ARG_END   "${ARGC}-1")

        foreach(IDX RANGE 2 ${ARG_END})

            list(GET ARGV ${IDX} FNAME)

    if(ARGC GREATER 2)

        list(REMOVE_AT ARGV 0 1)

        foreach(FNAME ${ARGV})

            get_filename_component(FNAME ${FNAME} NAME)

            set(temp "${temp}#include \"${FNAME}\"\n")

        endforeach()