feat(horaemeta): impl compaction nodes management service

[LeslieKid]

Rationale

The subtask to support compaction offloading. See #1545

Detailed Changes

• Horaemeta: Introduce CompactionNodeManager in ClusterMetadata
  • support register compaction nodes
  • support fetch compaction node with round-robin schedule strategy horaemeta.
• Add unit tests.

Test Plan

CI test & new unit tests