[code-reflection] Integrated: cuda fixes for violajones

[Gary Frost]

Found source of access violation in CUDA backend.

Also a bug in the algorithm itself (causing to walk off array).

Violajones still does not work for larger Nasa image.  But does for other three image types.

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Commit messages:
 - cuda fixes for violajones

Changes: https://git.openjdk.org/babylon/pull/105/files
  Webrev: https://webrevs.openjdk.org/?repo=babylon&pr=105&range=00
  Stats: 315 lines in 8 files changed: 110 ins; 94 del; 111 mod
  Patch: https://git.openjdk.org/babylon/pull/105.diff
  Fetch: git fetch https://git.openjdk.org/babylon.git pull/105/head:pull/105

PR: https://git.openjdk.org/babylon/pull/105