[feature request] C++ and Python client consumer add epoch.

[shibd]

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• [X] I searched in the issues and found nothing similar.

Motivation

PIP-84

Solution

Refer PR: https://github.com/apache/pulsar/pull/10478

Alternatives

No response

Anything else?

Need to write unit tests first to prove the problems mentioned in PIP, then prove that the problem can be solved by adding epoch.

Are you willing to submit a PR?

• [ ] I'm willing to submit a PR!

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