Add public API methods for accessing counts of Major Compaciton, Minor Compactions, and Active/Queued counts

**Is your feature request related to a problem? Please describe.**
The ability to access counts of Major Compactions, Minor Compactions, and Active/Queued counts is gated behind the use of non-public classes. We need to be able to access this information in Datawave via the public API.

**Describe the solution you'd like**
InstanceOperations currently has a method called "getActiveCompactions()", but lacks methods for the other counts listed above (Maj/Min, Active/Queued)

**Describe alternatives you've considered**
We're currently using ManagerClientService, ClientContext, and ThriftClientTypes to get the number of compactions, but these are not part of the public API.

**Additional context**
[Related Datawave PR](https://github.com/NationalSecurityAgency/datawave/pull/3253/files)

Start with the public InstanceOperations API and its existing getActiveCompactions() method, then review ManagerClientService, ClientContext, and ThriftClientTypes to understand the currently used non-public access path. Add public access for the requested compaction counts and verify that Datawave-style callers no longer need those non-public classes.

Written by the indexing model from the issue text.