RFR: 8314: Update some important copyrights [v2]

[Marcus Hirt]

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

Marcus Hirt has updated the pull request incrementally with one additional commit since the last revision:

  Various fixes

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Changes:
  - all: https://git.openjdk.org/jmc/pull/621/files
  - new: https://git.openjdk.org/jmc/pull/621/files/027a6f51..b6b38011

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jmc&pr=621&range=01
 - incr: https://webrevs.openjdk.org/?repo=jmc&pr=621&range=00-01

  Stats: 6 lines in 5 files changed: 0 ins; 0 del; 6 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