HDDS-10926. Block deletion should update container merkle tree.

[errose28]

Builds off #6778

What changes were proposed in this pull request?

When a block is deleted from a container, it should be marked as deleted in the container merkle tree. This tells peer datanodes that the data be skipped if they have not yet processed the deletion but find there is an error with this block. The chunk, block, and container hashes in the tree should not change.

What is the link to the Apache JIRA

HDDS-10926

How was this patch tested?

Unit test added

[kerneltime]

Will give another look post addressing of review comments and rebase.

[errose28]

For tests to pass I had to add the same metrics unregister workaround from #6945. ~HDDS-10239~ HDDS-11254 will properly close the checksum tree manager when everything is connected and this will no longer be necessary.

[errose28]

Run on my fork is green, waiting for verification here as well.

[smengcl]

Thanks @errose28 . Nice commit messages btw :D