Early Termination Across Slices [LUCENE-8940]

This JIRA tracks efforts for global early termination when segments are sorted. The cases being chased are:

1) Sorted segments – hit count > numHits but less than threshold

2) Sorted segments and sort key is non score – use shared PQ

3) Sorted segments and sort key is score – propagate global minimum score

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Migrated from [LUCENE-8940](https://issues.apache.org/jira/browse/LUCENE-8940) by Atri Sharma (@atris)
Sub-tasks:
- #9982
- #9972

Start by reading the two referenced sub-tasks, #9982 and #9972, and the migrated JIRA issue LUCENE-8940. Compare their scope with the three early-termination cases listed here; completion criteria and relevant implementation files or tests are not identified in this issue.

Written by the indexing model from the issue text.