RFR: 1150: Migrate skara tooling for client code to reference the new client-libs-dev list

[Erik Joelsson]

Here is my attempt at trying to rewrite the rules for automatic labeling for the new "client" label and client-libs-dev mailing list. I took the combined contents of the previous 2d, awt, sound and swing labels, sorted the lines and then tried to manually merge as much as possible. It's possible I didn't get everything correct or at least not fully optimized.

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Commit messages:
 - Merge branch 'master' into SKARA-1150-client-libs-dev
 - SKARA-1150

Changes: https://git.openjdk.java.net/skara/pull/1216/files
 Webrev: https://webrevs.openjdk.java.net/?repo=skara&pr=1216&range=00
  Issue: https://bugs.openjdk.java.net/browse/SKARA-1150
  Stats: 128 lines in 1 file changed: 26 ins; 85 del; 17 mod
  Patch: https://git.openjdk.java.net/skara/pull/1216.diff
  Fetch: git fetch https://git.openjdk.java.net/skara pull/1216/head:pull/1216

PR: https://git.openjdk.java.net/skara/pull/1216