Extend non-Pints optimisers for plotting

[NicolaCourtier]

• Add logging for non-Pints optimisers
• Add a SciPy minimize example

[codecov]

Codecov Report

Attention: 1 lines in your changes are missing coverage. Please review.

Comparison is base (7292125) 92.24% compared to head (d88f131) 92.93%.
Report is 17 commits behind head on develop.

Files	Patch %	Lines
pybop/optimisers/scipy_minimize.py	80.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #134      +/-   ##
===========================================
+ Coverage    92.24%   92.93%   +0.69%     
===========================================
  Files           30       34       +4     
  Lines         1031     1146     +115     
===========================================
+ Hits           951     1065     +114     
- Misses          80       81       +1     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[BradyPlanden]

Looks good @NicolaCourtier! One area that we might want to consider modifying for the future, otherwise LGTM