Command to Assign Model(s) to an AnalysisProject

It has been requested that a command be created to manually attach a model to an analysis project.

For consolation the creation of the bridge entity triggers a Timeline::Event so it is possible to determine later that the model was not actually a creation of that analysis project.
It's true it might.  I believe `Genome::Model::Somatic` is currently the only model type we have that is a prefix of other types, and those are no longer built.

We could change this to run through the YAML parsing logic, and then examine the model types there.  Then we'd have the exact strings to match on.  This would force creators of manual configs to be more careful when constructing their files as well.