[code-reflection] RFR: MNISTDemo split [v2]

[Adam Sotona]

> MNISTDemo separation of UI

Adam Sotona has updated the pull request incrementally with one additional commit since the last revision:

  repackaging

-------------

Changes:
  - all: https://git.openjdk.org/babylon/pull/333/files
  - new: https://git.openjdk.org/babylon/pull/333/files/e862726b..c9adc405

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=babylon&pr=333&range=01
 - incr: https://webrevs.openjdk.org/?repo=babylon&pr=333&range=00-01

  Stats: 26 lines in 14 files changed: 2 ins; 1 del; 23 mod
  Patch: https://git.openjdk.org/babylon/pull/333.diff
  Fetch: git fetch https://git.openjdk.org/babylon.git pull/333/head:pull/333

PR: https://git.openjdk.org/babylon/pull/333