Add user customization to plot_curve methods

[wd60622]

Description

User can now specify:

• same_axes to plot all the curves on the same axes
• axes in the plot_curve method
• colors in the plot_curve method
• turn legend off and on with legend parameter
• Change how the selection is displayed with sel_to_string parameter

Related Issue

• Closes Allow for additional customization in pymc_marketing.mmm.plot.plot_curve function #986
• Related to #

Checklist

• Checked that the pre-commit linting/style checks pass
• Included tests that prove the fix is effective or that the new feature works
• Added necessary documentation (docstrings and/or example notebooks)
• If you are a pro: each commit corresponds to a relevant logical change

Modules affected

• MMM
• CLV

Type of change

• New feature / enhancement
• Bug fix
• Documentation
• Maintenance
• Other (please specify):

---

📚 Documentation preview 📚: https://pymc-marketing--1018.org.readthedocs.build/en/1018/

[codecov]

Codecov Report

Attention: Patch coverage is 98.47328% with 2 lines in your changes missing coverage. Please review.

Project coverage is 95.70%. Comparing base (d0f1fd6) to head (e179688).
Report is 93 commits behind head on main.

Files with missing lines	Patch %	Lines
pymc_marketing/mmm/plot.py	98.29%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1018      +/-   ##
==========================================
+ Coverage   95.61%   95.70%   +0.08%     
==========================================
  Files          38       38              
  Lines        3716     3792      +76     
==========================================
+ Hits         3553     3629      +76     
  Misses        163      163              

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[juanitorduz]

Nice! I just left some minor comments

[wd60622]

This should be good to go @juanitorduz