[code-reflection] Integrated: HAT needs public access to TranslateToSpirvModel

[Gary Frost]

In prep for HAT code we need to give new hat code access to SPIRV

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Commit messages:
 - HAT needs public access to TranslateToSpirvModel

Changes: https://git.openjdk.org/babylon/pull/82/files
  Webrev: https://webrevs.openjdk.org/?repo=babylon&pr=82&range=00
  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/babylon/pull/82.diff
  Fetch: git fetch https://git.openjdk.org/babylon.git pull/82/head:pull/82

PR: https://git.openjdk.org/babylon/pull/82