Service Proxy Consolidation

Service Proxy Consolidation

- Updated ServiceProxyResourceCustomization to remove the ID column
- Removed setConfigurationResourceCustomization from
serviceProxyResource since that relationship doesn't exist anymore
- Updated ServiceProxy resource to remove the object dependencies
between ServiceProxyCustomization and ConfigurationResourceCustomization
- Removed the delete statement since this is causing the test to fail
because the service table doesn't exist yet
- Updated configuration_customization to drop the
serviceProxyCustomization FK
- Added migration script to consolidate the ServiceProxy and
ServiceProxyCustomization into a single table and migrate the data.
- Code changes to support consolidating the ServiceProxy and
ServiceProxyCustomization table into a single table

Change-Id: I1e49cb22c8b667f157dd1c349b5e36fd06236630
Issue-ID: SO-1380
Signed-off-by: Benjamin, Max (mb388a) <mb388a@us.att.com>