Bring back XML configuration and deprecate all related classes.
:bulb: Motivation and Context
XML support is planned to be removed but we should not remove it without deprecating it first. This PR brings back XML support and deprecates all classes.
:green_heart: How did you test it?
Run unit & integration tests against real AWS environment.
:pencil: Checklist
[x] I reviewed submitted code
[x] I added tests to verify changes
[ ] I updated reference documentation to reflect the change
:scroll: Description
Bring back XML configuration and deprecate all related classes.
:bulb: Motivation and Context
XML support is planned to be removed but we should not remove it without deprecating it first. This PR brings back XML support and deprecates all classes.
:green_heart: How did you test it?
Run unit & integration tests against real AWS environment.
:pencil: Checklist
:crystal_ball: Next steps
Drop XML support in 3.0.