add experiment benchmarks

[Vaibhav-Chopra-GT]

Description

Added benchmarks for CCCV and GITT experiments for SPM and DFN models with Chen2020 and Marquis2019 parameter sets

Type of change

Please add a line in the relevant section of CHANGELOG.md to document the change (include PR #) - note reverse order of PR #s. If necessary, also add to the list of breaking changes.

• New feature (non-breaking change which adds functionality)
• Optimization (back-end change that speeds up the code)
• Bug fix (non-breaking change which fixes an issue)

Key checklist:

• No style issues: $ flake8
• All tests pass: $ python run-tests.py --unit
• The documentation builds: $ cd docs and then $ make clean; make html

You can run all three at once, using $ python run-tests.py --quick.

Further checks:

• Code is commented, particularly in hard-to-understand areas
• Tests added that prove fix is effective or that feature works

[codecov]

Codecov Report

Merging #2106 (e90646c) into develop (d0f8f35) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff            @@
##           develop    #2106   +/-   ##
========================================
  Coverage    99.38%   99.38%           
========================================
  Files          348      348           
  Lines        19234    19234           
========================================
  Hits         19115    19115           
  Misses         119      119           

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