[NO ISSUE][HYR][LIC] += <extraDependencies/> to license plugin

[NO ISSUE][HYR][LIC] += <extraDependencies/> to license plugin

- Add ability to include extra maven dependencies (i.e. those not in the
  project model) in generated license output
- Extra maven dependencies can be the same groupId/artifactId as an
  exisiting dependency

(cherry picked from commit e0928c85ba)

Change-Id: Ic8f37d0eca6f4e745305b31d74682ca7e62ead27
Reviewed-on: https://asterix-gerrit.ics.uci.edu/c/asterixdb/+/14983
Integration-Tests: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Reviewed-by: Michael Blow <mblow@apache.org>