framework/config: make LoggingConfig serializable

wa/framework/configuration/core.py

@@ -118,6 +118,10 @@ class LoggingConfig(dict):
         'color': True,
     }
 
+    @staticmethod
+    def from_pod(pod):
+        return LoggingConfig(pod)
+
     def __init__(self, config=None):
         dict.__init__(self)
         if isinstance(config, dict):
@@ -136,6 +140,9 @@ class LoggingConfig(dict):
         else:
             raise ValueError(config)
 
+    def to_pod(self):
+        return self
+
 
 def get_type_name(kind):
     typename = str(kind)