Revise mock config classes to autowire properties

Revise mock config classes to autowire properties

Test that all default/required entries are in application.yaml by
replicating regular configuration class constructor autowire parameters
in the mock configuration class constructors.
Add belt-and-suspenders exclusion of key.properties, portal.properties
files to pom.xml since those files are needed to test regular startup.
Remove some unneeded imports that snuck in.

Change-Id: I86560aae11c31db6211d90669daeb100a2588bfd
Signed-off-by: Lott, Christopher (cl778h) <cl778h@att.com>