Add full Java module descriptors

### Describe the feature

I'd be great if AWS Java SDK supplied full Java module descriptors.

### Use Case

This will help modular projects that consume the SDK, specifically those that create custom Java Runtimes with jlink, as the latter does not support automatic modules but explicit modules.

### Proposed Solution

It's possible to keep bytecode baseline compatible with Java 8 while providing a full module descriptor thanks to [ModiTect](https://github.com/moditect/moditect).

### Other Information

I've checked all artifacts defined by the [BOM](https://repo1.maven.org/maven2/software/amazon/awssdk/bom/2.20.35/bom-2.20.35.pom) using https://github.com/kordamp/jarviz/ to see if there are any split packages. There are none! 🎉

Most artifacts have an explicit automatic module name via the Automatic-Module-Name manifest attribute, with the following artifacts missing such attribute:
- codegen-lite-maven-plugin-2.20.35.jar
- appsync-2.20.35.jar
- cloudwatch-metric-publisher-2.20.35.jar

### Acknowledgements

- [ ] I may be able to implement this feature request
- [ ] This feature might incur a breaking change

### AWS Java SDK version used

2.20.35

### JDK version used

openjdk version "11.0.17" 2022-10-18 LTS OpenJDK Runtime Environment Zulu11.60+19-CA (build 11.0.17+8-LTS) OpenJDK 64-Bit Server VM Zulu11.60+19-CA (build 11.0.17+8-LTS, mixed mode)

### Operating System and version

Darwin 20.6.0 Darwin Kernel Version 20.6.0: Tue Feb 22 21:10:41 PST 2022; root:xnu-7195.141.26~1/RELEASE_X86_64 x86_64