[FEATURE REQUEST] Make Model class pickle-able

[AndriyMulyar]

What problem does your feature solve?
Define a way to serialize a Model object such that the pipeline and inner machine learning model are connected in a single binary file.
Model objects can then be serialized and compressed for remote installation.

Describe the solution you'd like
Serialized models could be hosted anywhere and installed from anywhere.
model = medacy.load(serialized_model) # this would load an instance of the Model class

[AndriyMulyar]

Nevermind - there is a better way to handle models.