[amber-docs] RFR: Add "Data-Oriented Programming for Java: Beyond Records"

[Nicolai Parlog]

Add "Data-Oriented Programming for Java: Beyond Records"

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Commit messages:
 - Add "Data-Oriented Programming for Java: Beyond Records"

Changes: https://git.openjdk.org/amber-docs/pull/29/files
  Webrev: https://webrevs.openjdk.org/?repo=amber-docs&pr=29&range=00
  Stats: 689 lines in 2 files changed: 689 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/amber-docs/pull/29.diff
  Fetch: git fetch https://git.openjdk.org/amber-docs.git pull/29/head:pull/29

PR: https://git.openjdk.org/amber-docs/pull/29