RFR: 7175396: The text on label is not painted red for Nimbus LaF. [v3]

[Prasanta Sadhukhan]

> Label.foreground UIProperty is not honored by Nimbus L&F.
> Added support for setting JLabel foreground color for Nimbus L&F

Prasanta Sadhukhan has updated the pull request incrementally with one additional commit since the last revision:

  Get color once during init

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Changes:
  - all: https://git.openjdk.org/jdk/pull/9900/files
  - new: https://git.openjdk.org/jdk/pull/9900/files/e6de6d08..b6d0a8bd

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=9900&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=9900&range=01-02

  Stats: 9 lines in 2 files changed: 4 ins; 2 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/9900.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/9900/head:pull/9900

PR: https://git.openjdk.org/jdk/pull/9900