policy changes pre-1st policy release in frankfurt

Miscellenous changes to keep up with all necessary oom
modifications to support first set of released deliveries.

PS1,PS6: PDP-D offline support.

PS2: PDP-D PDP Group support.  When PDPs register with PAP,
they now have to specify their PDP group. Added the default
group to the config file.

PS3: PDP-A config file changes to add PDP group and
native policy type.

PS4, PS6: API add new preloaded policy types.

PS5: Set snapshot versions for current release testing.

PS[7-9]: https dmaap support for pap,pdp-x,distribution,pdp-a.

PS10: PAP healthcheck configuration.

PS11: Update LICENSE headers.

PS12: Preload onap.policies.controlloop.operational.Common
operational type.

PS13: PDP-D drools base.conf remove JAVA_HOME

PS14: add preloaded operational policies for apex in api component,
      and JDK 11 for legacy engine components.

PS15: apex updated supported policy types, and remove duplicate
      preloaded policy type from api (operational Common).

PS16: added api preloaded policy.

PS17: distribution + more api preloaded policies

PS18: amsterdam.pre.sh point to pdpd-cl-entrypoint.sh

PS19: rebase and remove references to amsterdam in drools (deprecated)

PS21: replace url with host/port for new actor design

PS22: add trailing "/" to context URIs

PS23: restore SO_URL as it may be needed for old actors/rules

PS24: update to released images

PS25: updated brmsgw.conf to latest images

Issue-ID: POLICY-2296
Change-Id: I52232f65db19a50dd3c9baf052242c6d79675264
Signed-off-by: jhh <jorge.hernandez-herrero@att.com>
Signed-off-by: Jim Hahn <jrh3@att.com>
Signed-off-by: jhh <jorge.hernandez-herrero@att.com>