RFR: 8294400: Provide media support for libavcodec version 59

Tue Oct 25 05:14:20 UTC 2022

- Added support for libavcodec 59.
 - libavcodec 59 removed several deprecated APIs and avplugin code was updated to use replacement APIs instead.
 - No changes to avplugin when used with 58 or below.
 - Note: Support for libavcodec 59 was added based on ffmpeg only. libav does not have version 59.

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Commit messages:
 - 8294400: Provide media support for libavcodec version 59

Changes: https://git.openjdk.org/jfx/pull/932/files
 Webrev: https://webrevs.openjdk.org/?repo=jfx&pr=932&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8294400
  Stats: 138 lines in 9 files changed: 107 ins; 0 del; 31 mod
  Patch: https://git.openjdk.org/jfx/pull/932.diff
  Fetch: git fetch https://git.openjdk.org/jfx pull/932/head:pull/932

PR: https://git.openjdk.org/jfx/pull/932