Better organize the source file structure of the build manager and change it to choose a lifecycle manager based on the config

buildman/component/basecomponent.py

@@ -0,0 +1,10 @@
+from autobahn.asyncio.wamp import ApplicationSession
+
+class BaseComponent(ApplicationSession):
+  """ Base class for all registered component sessions in the server. """
+  def __init__(self, config, **kwargs):
+    ApplicationSession.__init__(self, config)
+    self.server = None
+    self.parent_manager = None
+    self.build_logs = None
+    self.user_files = None