[code-reflection] Integrated: Simplified hatrun.bash. All examples now <package>.Main

[Gary Frost]

Renamed all examples so that they conform to pattern <package>.Main

So class name is always Main,  except for experiments... which I assume are run from IntelliJ.

Also we have to pass 'headless' as first arg. 
 


See 

bash hatrun.bash

For usage

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Commit messages:
 - Simplified hatrun.bash. All examples now <package>.Main

Changes: https://git.openjdk.org/babylon/pull/204/files
  Webrev: https://webrevs.openjdk.org/?repo=babylon&pr=204&range=00
  Stats: 459 lines in 18 files changed: 165 ins; 249 del; 45 mod
  Patch: https://git.openjdk.org/babylon/pull/204.diff
  Fetch: git fetch https://git.openjdk.org/babylon.git pull/204/head:pull/204

PR: https://git.openjdk.org/babylon/pull/204