RFR: 8282526: Default icon is not painted properly

[Alexander Zuev]

Detect the situation where we do need to perform interpolation during ImageIcon
painting and set a hint to the rendering to perform bicubic approximation so
image details are preserved during transition.

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Commit messages:
 - 8282526: Default icon is not painted properly

Changes: https://git.openjdk.java.net/jdk/pull/7805/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=7805&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8282526
  Stats: 153 lines in 3 files changed: 148 ins; 0 del; 5 mod
  Patch: https://git.openjdk.java.net/jdk/pull/7805.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/7805/head:pull/7805

PR: https://git.openjdk.java.net/jdk/pull/7805