RFR: 6528710: sRGB-ColorSpace to sRGB-ColorSpace Conversion

[Sergey Bylokhov]

The quality of the cmm library is increased since the bug was reported. This is the request to import the test from the bug description to improve the code coverage.

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Commit messages:
 - 6528710: sRGB-ColorSpace to sRGB-ColorSpace Conversion

Changes: https://git.openjdk.org/jdk/pull/11250/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=11250&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-6528710
  Stats: 51 lines in 1 file changed: 51 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/11250.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/11250/head:pull/11250

PR: https://git.openjdk.org/jdk/pull/11250