Avoid introducing MPC.plot

[baggepinnen]

This PR tries to solve #119

RecipesBase.plot is the function that is actually called when plotting a result object, ModelPredictiveControl.plot is a different function with the same name (in another namespace), causing some confusion

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 3 lines in your changes missing coverage. Please review.

Project coverage is 98.93%. Comparing base (3833301) to head (d195086).

Files with missing lines	Patch %	Lines
src/plot_sim.jl	0.00%	3 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #120   +/-   ##
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  Coverage   98.93%   98.93%           
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  Files          24       24           
  Lines        3575     3575           
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  Hits         3537     3537           
  Misses         38       38           

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[franckgaga]

ModelPredicitiveControl.plot is not a real function. The sole purpose of this function is to document the keyword arguments of the plot recipes in the online documentation, and also by writing ?ModelPredictiveControl.plot in the REPL. But it does create some confusion. What's the best way to do that?

[franckgaga]

@baggepinnen
Would it be a good idea to introduce three new method of controlplot and document these methods instead?

[baggepinnen]

What's the best way to do that?

I'm not entirely sure, but I think that documenting RecipesBase.plot and inserting this docstring in the docs is the correct way to do it.

Would it be a good idea to introduce three new method of controlplot and document these methods instead?

Using RecipesBase is usually the most robust option in my experience, especially if you want the plot recipe to behave like an ordinary Plots.plot with all the features that bring.

[franckgaga]

Alright I need to change the md file to make the online doc compiles. I'll do that when I'm back from Japan. You can also try if you have time but these kind of stuff can wait IMO