RFR: Merge jfx20

[Kevin Rushforth]

Merfe `jfx20` branch into `master`.

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Commit messages:
 - Merge jfx20
 - 8301832: InputMethodEvents are not enabled for text input controls
 - 8301797: Pagination control has the wrong size

The merge commit only contains trivial merges, so no merge-specific webrevs have been generated.

Changes: https://git.openjdk.org/jfx/pull/1028/files
  Stats: 70 lines in 4 files changed: 63 ins; 5 del; 2 mod
  Patch: https://git.openjdk.org/jfx/pull/1028.diff
  Fetch: git fetch https://git.openjdk.org/jfx pull/1028/head:pull/1028

PR: https://git.openjdk.org/jfx/pull/1028