Enable modification of the agent's details on run time.

[Totoual]

It would be nice if we could modify the details (Name for example) of an agent on the run time. This will enable us to create a basic agent image on docker, and replicate it on the fly. Currently in order to change the name of the agent I have to do something like the following :

self.context._get_agent_context().identity._name = "Test"