[code-reflection] Integrated: Automatically detect which event helper to exclude in glwrap

[Gary Frost]

Merged required cuda bld.java changes

Sadly extracted opengl is subtley different on mac and linux.  We need to exclude specific wrapper classes, depending on files in the jextracteOpenCL.jar. 

 This PR also has logic to detect this so we don't have to remember to comment in/out  'exclusion' patterns.

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Commit messages:
 - Automatically detect which event helper to exclude in glwrap

Changes: https://git.openjdk.org/babylon/pull/406/files
  Webrev: https://webrevs.openjdk.org/?repo=babylon&pr=406&range=00
  Stats: 94 lines in 3 files changed: 74 ins; 9 del; 11 mod
  Patch: https://git.openjdk.org/babylon/pull/406.diff
  Fetch: git fetch https://git.openjdk.org/babylon.git pull/406/head:pull/406

PR: https://git.openjdk.org/babylon/pull/406