Latest version referencing aws v1

Amazon has announced aws sdk 1 is going away, but this lib is still referencing it. In fact. the latest build added more references to it in AmazonSQSExtendedClient.java. We know v1 and v2 can run side by side, but we are trying to minimize dependencies/file size for java based aws lambdas.

- Requesting this artifact's groupId be updated to reflect the v2 naming standard of: **software.amazon**
_(Keeping the old groupId but using v2 sdk has become very confusing for end-user)_

- Eliminate all references to v1 sdk