iterating on new helm structure for SO

iterating on new helm structure for SO

with this change we can now do the following:

can deploy umbrella chart with currently working components:
helm install local/onap --name onap --namespace onap-all
helm install local/onap --name onap-2 --namespace onap-all-2 \
--set global.nodePortPrefix=303
- umbrella includes setup chart

can deploy a-la-carte component by component into a single namespace
- Need to deploy a setup chart first. cannot be made a helm dependency
as there will be conflicts if each app chart has the same setup dependency.
helm install local/setup --name onap-setup --namespace onap-apps
helm install local/so --name so1 --namespace onap-apps \
--set global.nodePortPrefix=304

helm list
NAME          REVISION    STATUS      CHART          NAMESPACE
onap          1           DEPLOYED    onap-2.0.0     onap-all
onap-2        1           DEPLOYED    onap-2.0.0     onap-all-2
onap-setup    1           DEPLOYED    setup-2.0.0    onap-apps
so1           1           DEPLOYED    so-2.0.0       onap-apps

Unfortunately, the config maps all have fixed names, so installing
the same app in the a-la-carte fashion will fail due to a collision.
Not worrying about this as I'm not sure we want to support this.

-made the common and setup charts standalone to remove relative file paths
from requirements.yaml
   This will help when there are different levels of subcharts that
need to include common

Issue-ID: OOM-786
Issue-ID: OOM-789
Issue-ID: OOM-788

Change-Id: I20bacae6f0f20e8f3bb1527af1e7e53f187341d5
Signed-off-by: Mandeep Khinda <mandeep.khinda@amdocs.com>