RFR: 8314: Update some important copyrights

[Marcus Hirt]

Also added some missing project files to make life easier in Eclipse.

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

Commit messages:
 - 8314: Update some important copyrights

Changes: https://git.openjdk.org/jmc/pull/621/files
  Webrev: https://webrevs.openjdk.org/?repo=jmc&pr=621&range=00
  Issue: https://bugs.openjdk.org/browse/JMC-8314
  Stats: 108 lines in 24 files changed: 51 ins; 3 del; 54 mod
  Patch: https://git.openjdk.org/jmc/pull/621.diff
  Fetch: git fetch https://git.openjdk.org/jmc.git pull/621/head:pull/621

PR: https://git.openjdk.org/jmc/pull/621