Deprecate: Deprecate all camel case functions in `fitbase`

[cadenmyers13]

Problem

We still use camel case function naming and we want to move to snake case. The following files need to be review for deprecation:

• __init__.py
• calculator.py
• configurable.py
• constraint.py
• fitcontribution.py
• fithook.py
• fitrecipe.py
• fitresults.py
• parameter.py
• parameterset.py
• profile.py
• profilegenerator.py
• profileparser.py
• recipeorganizer.py
• restraint.py
• simplerecipe.py
• validatable.py

Proposed solution

Follow instructions in scikit-package 0.3.0 documentation for how to deprecate a function. if 0.3.0 hasnt been released yet, you can build the documentation locally for these instructions.

[cadenmyers13]

@sbillinge I just got to thinking, do we want the .create_new_variable, .add_variable, and .delete_variable methods to be create_new_parameter, add_parameter, and delete_parameter? Im forgetting which is which 😂

edit: I think no, right? because we define variables in constraint equations right

[sbillinge]

ooh, yes, this is our chance to fix the parameter-variable dichotomy and never have to apologise for it ever again.

Parameters belong to the model
Variables are varied in the regressor.
they are linked by the constraint equations.

I think addVar() is correct usage. It is adding a variable to the regression. It would take as argument a relation involving one or moer paramters. The ones you mention above I am not sure about. Let's give it some thought and come up with a compreshensive plan....we could do a global search for var and par as a start?

Let's do this.