Add a security scanner api config object for params

Change SecScanAPI to use a uri creation func instead of test context

Pass config provider through validator context

Remove app config dependency for validators

util/config/provider/testprovider.py

@@ -10,6 +10,11 @@ REAL_FILES = ['test/data/signing-private.gpg', 'test/data/signing-public.gpg', '
 class TestConfigProvider(BaseProvider):
   """ Implementation of the config provider for testing. Everything is kept in-memory instead on
       the real file system. """
+
+  def get_config_root(self):
+    raise Exception('Test Config does not have a config root')
+    # return ''
+
   def __init__(self):
     self.clear()