Is your feature request related to a problem? Please describe.

The gempyor.distributions module provides a general purpose and modular representation for probability distributions, but still needs to be integrated into gempyor.

Is your feature request related to a new application, scenario round, pathogen? Please describe.

No response

Describe the solution you'd like

Need to add a likelihood method to DistributionABC that wraps _likelihood implemented by subclasses of DistributionABC then plug that into the gempyor.statistics module. Might be helpful to fallback to the dist_map if not a Distribution for now, to help users transition.