📈 Make current vs time plot for plot_proc

[chris-ashe]

This pull request includes several changes to the process/io/plot_proc.py file, primarily focusing on adding a new plotting function and making adjustments to existing plotting functions for clarity and consistency.

New Functionality:

• Added plot_current_profiles_over_time function to plot the current profiles over time for PF circuits, CS coil, and plasma.

Adjustments to Existing Functions:

• Updated the plot_nprofile function to modify axis labels and plot legends for better clarity.
• Updated the plot_tprofile function to modify axis labels and plot legends for better clarity.

Integration of New Function:

• Modified the main_plot function to include the new plot_current_profiles_over_time function, adding a new figure and subplot for this plot.

New plot at end of plot_proc output:

Checklist

I confirm that I have completed the following checks:

• My changes follow the PROCESS style guide
• I have justified any large differences in the regression tests caused by this pull request in the comments.
• I have added new tests where appropriate for the changes I have made.
• If I have had to change any existing unit or integration tests, I have justified this change in the pull request comments.
• If I have made documentation changes, I have checked they render correctly.
• I have added documentation for my change, if appropriate.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 2.17391% with 45 lines in your changes missing coverage. Please review.

Project coverage is 31.15%. Comparing base (6bac4f3) to head (085a754).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
process/io/plot_proc.py	2.17%	45 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3532      +/-   ##
==========================================
- Coverage   31.21%   31.15%   -0.06%     
==========================================
  Files          81       81              
  Lines       19432    19472      +40     
==========================================
+ Hits         6065     6066       +1     
- Misses      13367    13406      +39     

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[j-a-foster]

The example plot looks like it could be tidied a bit but it looks good for now.

[timothy-nunn]

Some questions, code looks good otherwise

[timothy-nunn]

Happy with code