Add modredcul_mul_ul_ul() with 1 integer operand and integer result
Add modredcul_mul_ul_ul() with 1 integer operand and integer result

mancoast/cado-nfs,mancoast/cado-nfs,mancoast/cado-nfs,mancoast/cado-nfs,mancoast/cado-nfs,mancoast/cado-nfs,mancoast/cado-nfs