Add listener hook before finalize filter.

Add a hook so coordinators can listen before the FinalizeFilter
stage (previously named preRenderFilter and renamed in this CL b/c
OnBeforePreRenderFilter sounds somewhat awkward).

This'll be helpful for moving inflation-related filtering after
sort/group stage.

Bug: 112656837
Test: atest ShadeListBuilderTest
Change-Id: If7c7b7375b664ddcd0bb75b0937070a03db9b0e3