[code-reflection] RFR: [HAT] Testing framework improved with general statistics

[Juan Fumero]

This patch improves the testing for HAT with a final report with a summary and pass-rates. 

How to run? 


java @hat/test suite ffi-opencl



java @hat/test suite ffi-cuda

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Commit messages:
 - [hat] Testing - final report only when running the test-suite
 - [hat] Testing - including test-report
 - [hat] Testing - delete old package
 - Merge branch 'code-reflection' into hat/testing/framework
 - [hat] Test reductions added
 - [hat] Enable test suite
 - [hat] Testing matrices added
 - [hat] Testing framework improved
 - Add missing pom file
 - Add missing licenses
 - ... and 3 more: https://git.openjdk.org/babylon/compare/4e621f39...dfeffa38

Changes: https://git.openjdk.org/babylon/pull/561/files
  Webrev: https://webrevs.openjdk.org/?repo=babylon&pr=561&range=00
  Stats: 153 lines in 5 files changed: 77 ins; 75 del; 1 mod
  Patch: https://git.openjdk.org/babylon/pull/561.diff
  Fetch: git fetch https://git.openjdk.org/babylon.git pull/561/head:pull/561

PR: https://git.openjdk.org/babylon/pull/561