RFR: 1704: Add or update copyright header in some files

[Zhao Song]

The patch just updated copyright headers in some files.

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

Commit messages:
 - SKARA-1704

Changes: https://git.openjdk.org/skara/pull/1431/files
 Webrev: https://webrevs.openjdk.org/?repo=skara&pr=1431&range=00
  Issue: https://bugs.openjdk.org/browse/SKARA-1704
  Stats: 1014 lines in 363 files changed: 682 ins; 0 del; 332 mod
  Patch: https://git.openjdk.org/skara/pull/1431.diff
  Fetch: git fetch https://git.openjdk.org/skara pull/1431/head:pull/1431

PR: https://git.openjdk.org/skara/pull/1431