metrics: use legacyregister instead of new registry

[Iceber]

What type of PR is this?

/kind feature

What this PR does / why we need it:
Use compose-base/metrics instead of prometheus.Registry directly

This has several benefits:

1. use the same Metrics as the clusterpedia apierver, and the metrics can be aggregated for display in the binding-apiserver command
2. Golang Metrics and Process Metrics are now registered.
3. more advanced functionality for future use of compose-base/metrics

Which issue(s) this PR fixes:
Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

[clusterpedia-bot]

Hi @Iceber,
Thanks for your pull request!
If the PR is ready, use the /auto-cc command to assign Reviewer to Review.
We will review it shortly.

Details

Instructions for interacting with me using comments are available here.
If you have questions or suggestions related to my behavior, please file an issue against the gh-ci-bot repository.

[clusterpedia-bot]

@Iceber

Failed add label kind/features

Details

Instructions for interacting with me using comments are available here.
If you have questions or suggestions related to my behavior, please file an issue against the gh-ci-bot repository.