[BlockJoin] Add ParentsChildrenBlockJoinQuery (#14728)

Add ParentsChildrenBlockJoinQuery to support parent and child docs filtering in one pass.

Note that this query type will not work with intrasegment concurrency, as it may split a block,
leading to overcollection of child documents.

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Co-authored-by: jinnyw <[email protected]>

Author: Jinny-Wang

lucene/CHANGES.txt

@@ -89,6 +89,9 @@ New Features
 * GITHUB#14404: Introducing DocValuesMultiRangeQuery.SortedNumericStabbingBuilder into sandbox.
   (Mikhail Khludnev)
 
+* GITHUB#14565: Add ParentsChildrenBlockJoinQuery that supports parent and child filter in the same query
+  along with limiting number of child documents to retrieve per parent. (Jinny Wang)
+
 Improvements
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 * GITHUB#14458: Add an IndexDeletion policy that retains the last N commits. (Owais Kazi)