Make sure caching still works when switching to Casadi 3
We now cache with a key str(MXFunction). In Casadi 2 this expands into the entire function formulation, but it may be the case that in Casadi 3.3+ this is no longer the default behavior.
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
We now cache with a key str(MXFunction). In Casadi 2 this expands into the entire function formulation, but it may be the case that in Casadi 3.3+ this is no longer the default behavior.