Merged in feature/s3integration (pull request #47)

Set Up S3 integration

* cfginterfaceandfirsts3funcs

* addlocalstack

* generallypassesfullsuite

* addedmultipleattemptedpings

* cleanup

* stabiliseplusskip

vendor/github.com/getkin/kin-openapi/openapi3/header.go

@@ -94,3 +94,9 @@ func (header *Header) Validate(ctx context.Context, opts ...ValidationOption) er
 	}
 	return nil
 }
+
+// UnmarshalJSON sets Headers to a copy of data.
+func (headers *Headers) UnmarshalJSON(data []byte) (err error) {
+	*headers, _, err = unmarshalStringMapP[HeaderRef](data)
+	return
+}