Extract Transfuse components from the wrapping generated Android classes

[shannong]

It would be helpful to be able to get the component used to create a generated class from that class.
e.g.,

TransfuseActivity ta = Components.getComponentFor(androidActivity);
TransfuseFragment tf = Components.getComponentFor(androidFragmnet);

[johncarl81]

I'm 50 / 50 on this feature. I think its a neat idea but I need to think of some use cases.