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

workers/securityworker/securityworker.py

@@ -19,7 +19,7 @@ DEFAULT_INDEXING_INTERVAL = 30
 class SecurityWorker(Worker):
   def __init__(self):
     super(SecurityWorker, self).__init__()
-    validator = SecurityConfigValidator(app.config)
+    validator = SecurityConfigValidator(app.config.get('FEATURE_SECURITY_SCANNER', False), app.config.get('SECURITY_SCANNER_ENDPOINT'))
     if not validator.valid():
       logger.warning('Failed to validate security scan configuration')
       return