Enable Relate Interface of Shape Doc Values to be used by clients of Lucene

[navneet1v]

Description

With the release of ShapeDocValues and ShapeDoc Values field(LUCENE-10654), it provides various interfaces to create the query and create the different ShapeDoc values. But it doesn't provide the interface to find the relation between a Shape(provided as ShapeDocValues) with another shape. This functionality is already present in the ShapeDocValues, but not exposed to the clients, as the ShapeDocValue class itself is marked as package-private.

Expectation:
The expectation is to provide this relate functionality to the clients, so that it can be used to find the relations.

[navneet1v]

Resolving the issue as the code is merged.