[code-reflection] RFR: OnnxRuntime and OnnxProtoBuilder continuation [v11]

[Adam Sotona]

> OnnxRuntime and OnnxProtoBuilder continuation

Adam Sotona has updated the pull request incrementally with three additional commits since the last revision:

 - Standalone DigitRecognizer implementation
   
 - Tensor and CNNTest cleanup
   
 - Tensor cleanup

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Changes:
  - all: https://git.openjdk.org/babylon/pull/316/files
  - new: https://git.openjdk.org/babylon/pull/316/files/f5c8f78f..1da306b9

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=babylon&pr=316&range=10
 - incr: https://webrevs.openjdk.org/?repo=babylon&pr=316&range=09-10

  Stats: 330 lines in 17 files changed: 193 ins; 99 del; 38 mod
  Patch: https://git.openjdk.org/babylon/pull/316.diff
  Fetch: git fetch https://git.openjdk.org/babylon.git pull/316/head:pull/316

PR: https://git.openjdk.org/babylon/pull/316