[feat][broker] PIP-180 Part VI: Add ShadowManagedLedgerImpl

[Jason918]

Master Issue: https://github.com/apache/pulsar/issues/16153

Motivation

After this PR, the basic function of PIP-180 shadow topic will be ready.

Modifications

• Add ShadowManagedLedgerImpl

Verifying this change

• [ ] Make sure that the change passes the CI checks.

This change added tests and can be verified as follows:

• see ShadowTopicTest.java

Does this pull request potentially affect one of the following parts:

If the box was checked, please highlight the changes

• [ ] Dependencies (add or upgrade a dependency)
• [ ] The public API
• [ ] The schema
• [ ] The default values of configurations
• [ ] The threading model
• [ ] The binary protocol
• [ ] The REST endpoints
• [ ] The admin CLI options
• [ ] Anything that affects deployment

Documentation

• [ ] doc
• [x] doc-required
• [ ] doc-not-needed
• [ ] doc-complete

Matching PR in forked repository

PR in forked repository: https://github.com/Jason918/pulsar/pull/12