Add x-amz-content-sha256 header to signed and canonical headers. Checked on scality/cloudserver
Add x-amz-content-sha256 header to signed and canonical headers. Checked on scality/cloudserver

DualSpark/rusoto,rusoto/rusoto,DualSpark/rust-aws,DualSpark/rust-aws,DualSpark/rusoto,DualSpark/rust-aws,rusoto/rusoto,rusoto/rusoto,DualSpark/rusoto