Add ServiceAddressResolver class to support LoadBalanced RestTemplate…

[xzxiaoshan]

Add ServiceAddressResolver class to support LoadBalanced RestTemplate direct access to services via IP address and port

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… direct access to services via IP address and port (#1601)

[xzxiaoshan]

Additional Notes

1. ServiceAddressResolver Class: The ServiceAddressResolver class is designed to meet the requirements of most production environments. In extreme scenarios, developers can customize their own logic by overriding the ServiceAddressResolver bean methods.

2. Compatibility Enhancement: The code now supports direct URI requests while maintaining full compatibility with existing logic. No changes were made to the original functionality - only additional support for direct connection URLs has been added.

[xzxiaoshan]

Hi @spencergibb ,
I hope this message finds you well. I wanted to kindly ask for your feedback on this PR - would it be possible to get it merged?
I'm curious if there's a release plan for the next 4.3.x version? The functionality in this PR is actually needed for a project I'm currently working on, so I'd greatly appreciate if it could be merged and potentially included in a minor release soon.
Thank you so much for your time and consideration. Please let me know if there's anything else you'd like me to address or improve.