RFR: 8306409: Open source AWT KeyBoardFocusManger, LightWeightComponent related tests [v2]

[Abhishek Kumar]

> This PR is to open source Keyboard Focus Manager, Light Weight Component and few other AWT tests.

Abhishek Kumar has updated the pull request incrementally with one additional commit since the last revision:

  Review comment update

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Changes:
  - all: https://git.openjdk.org/jdk/pull/13633/files
  - new: https://git.openjdk.org/jdk/pull/13633/files/6296f044..eebe20a6

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=13633&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=13633&range=00-01

  Stats: 47 lines in 2 files changed: 0 ins; 0 del; 47 mod
  Patch: https://git.openjdk.org/jdk/pull/13633.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/13633/head:pull/13633

PR: https://git.openjdk.org/jdk/pull/13633