[code-reflection] Integrated: Hat doc markdown cleanup and ptr schema experiments

[Gary Frost]

Updated and cleaned up some markdown docs.

Added more Schema+Ptr op experiments.

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Commit messages:
 - Whitespace
 - Cleaned up docs/md files and some more Schema/Ptr experiments

Changes: https://git.openjdk.org/babylon/pull/160/files
  Webrev: https://webrevs.openjdk.org/?repo=babylon&pr=160&range=00
  Stats: 4692 lines in 29 files changed: 2439 ins; 2227 del; 26 mod
  Patch: https://git.openjdk.org/babylon/pull/160.diff
  Fetch: git fetch https://git.openjdk.org/babylon.git pull/160/head:pull/160

PR: https://git.openjdk.org/babylon/pull/160