Update the version of Lucene used by Ensemble to the latest release of Lucene 7 which is version 7.7.2.
Per the instructions in [`UPDATING-lucene.txt`](https://github.com/openjdk/jfx/blob/master/apps/samples/Ensemble8/UPDATING-lucene.txt), I made the following chages: 1. Bumped the version numbers from 7.7.1 to 7.7.2 in all needed places 2. Regenerated the index files. I used JDK 11.x to do this (out of an abundance of caution, not because I think it matters). To test this: apply the patch, run `gradle apps`, launch Ensemble8, and search for a sample or JavaFX component in the upper-right search box. ------------- Commits: - efb46435: 8238434: Ensemble: Update version of Lucene to 7.7.2 Changes: https://git.openjdk.java.net/jfx/pull/105/files Webrev: https://webrevs.openjdk.java.net/jfx/105/webrev.00 Issue: https://bugs.openjdk.java.net/browse/JDK-8238434 Stats: 10 lines in 10 files changed: 0 ins; 0 del; 10 mod Patch: https://git.openjdk.java.net/jfx/pull/105.diff Fetch: git fetch https://git.openjdk.java.net/jfx pull/105/head:pull/105 PR: https://git.openjdk.java.net/jfx/pull/105
