Create load_from_idata ModelBuilder method

[wd60622]

The load classmethod has a few steps:

pymc-marketing/pymc_marketing/model_builder.py

Lines 509 to 514 in 62ed55f

	This class method has a few steps:
	- Load the InferenceData from the file.
	- Construct a new instance of the model using the InferenceData attrs
	- Build the model from the InferenceData
	- Check if the model id matches the id in the InferenceData loaded.

This would result in separate the first from the rest which the current load classmethod would be able to depend on the new method.

Just bringing up in case someone has the InferenceData object and wants to recreate the model. This relaxes our assumption of IO.

CC: @juanitorduz

Reference: wd60622/pymc-marketing-dagster-example#2

[wd60622]

Would also help against #1218

[wd60622]

Hi, @JnsLns
Would this help with your issue? This route, you'd see that the model is build and is incompatible