RuntimeConfig: Handle initialisation failure of RT plugin

Previously if one of the runtime parameters failed to initialize it would cause
the the entire setup process to fail. Now if an error is encountered e.g. a core
went offline when trying to read its information, that particular parameter will
be disabled along with it's supported parameters. This means that only if a user
attempts to use the RT parameter will execution be stopped however it will raise
a potentially misleading unsupported parameter error.

wa/framework/target/runtime_config.py

@@ -26,6 +26,7 @@ class RuntimeParameter(Parameter):
 
 class RuntimeConfig(Plugin):
 
+    name = None
     kind = 'runtime-config'
 
     @property
@@ -41,7 +42,12 @@ class RuntimeConfig(Plugin):
         self.target = target
         self._target_checked = False
         self._runtime_params = {}
-        self.initialize()
+        try:
+            self.initialize()
+        except TargetError:
+            msg = 'Failed to initialize: "{}"'
+            self.logger.debug(msg.format(self.name))
+            self._runtime_params = {}
 
     def initialize(self):
         raise NotImplementedError()