add AWS Config integration tests
add AWS Config integration tests

DualSpark/rust-aws,rusoto/rusoto,DualSpark/rust-aws,mattico/rusoto,DualSpark/rusoto,DualSpark/rusoto,mthjones/rusoto,ford-prefect/rusoto,cmsd2/rusoto,ford-prefect/rusoto,noggleboggle/rusoto,DualSpark/rust-aws,mattico/rusoto,indiv0/rusoto,SecurityInsanity/rusoto,mthjones/rusoto,rusoto/rusoto,SecurityInsanity/rusoto,mattico/rusoto,DualSpark/rusoto,rusoto/rusoto