Adds back bucket creation integration test.
Adds back bucket creation integration test.

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