[Integrated] RFR: 8238434: Ensemble: Update version of Lucene to 7.7.2

[Kevin Rushforth]

Changeset: b5e65ecc
Author:    Kevin Rushforth <kcr at openjdk.org>
Date:      2020-02-18 14:41:22 +0000
URL:       https://git.openjdk.java.net/jfx/commit/b5e65ecc

8238434: Ensemble: Update version of Lucene to 7.7.2

Reviewed-by: aghaisas

! apps/samples/.classpath
! apps/samples/Ensemble8/UPDATING-lucene.txt
! apps/samples/Ensemble8/build.gradle
! apps/samples/Ensemble8/legal/lucene.md
! apps/samples/Ensemble8/nbproject/project.properties
! build.gradle