[code-reflection] Integrated: create cuda version of new squares demo

[Gary Frost]

This includes the cmake changes to execute cuda version of squares demo

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Commit messages:
 - create cuda version of new squares demo

Changes: https://git.openjdk.org/babylon/pull/99/files
  Webrev: https://webrevs.openjdk.org/?repo=babylon&pr=99&range=00
  Stats: 10 lines in 1 file changed: 10 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/babylon/pull/99.diff
  Fetch: git fetch https://git.openjdk.org/babylon.git pull/99/head:pull/99

PR: https://git.openjdk.org/babylon/pull/99