RFR: 8150564: Migrate useful ExtendedRobot methods into awt.Robot [v2]

[Damon Nguyen]

> Some useful methods (click, glide, waitForIdle, type) in ExtendedRobot should be migrated into Robot itself so that ExtendedRobot can be removed in the future. The tests using these ExtendedRobot methods will be handled separately.

Damon Nguyen has updated the pull request incrementally with one additional commit since the last revision:

  Make vars static

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Changes:
  - all: https://git.openjdk.org/jdk/pull/26969/files
  - new: https://git.openjdk.org/jdk/pull/26969/files/01967522..2410e00d

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=26969&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=26969&range=00-01

  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/26969.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/26969/head:pull/26969

PR: https://git.openjdk.org/jdk/pull/26969