issues from the PR addressed. Bigger rewrite, so separate branch

[rozyczko]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 92.25352% with 11 lines in your changes missing coverage. Please review.
✅ Project coverage is 83.04%. Comparing base (28e0c53) to head (f8e3929).

Files with missing lines	Patch %	Lines
src/easyscience/fitting/sampler.py	92.59%	10 Missing ⚠️
.../easyscience/fitting/minimizers/minimizer_bumps.py	75.00%	1 Missing ⚠️

Additional details and impacted files

@@                 Coverage Diff                 @@
##           bayesian_extend     #260      +/-   ##
===================================================
+ Coverage            82.78%   83.04%   +0.25%     
===================================================
  Files                   62       63       +1     
  Lines                 5078     5189     +111     
===================================================
+ Hits                  4204     4309     +105     
- Misses                 874      880       +6     

Flag	Coverage Δ
integration	45.40% <92.25%> (+1.09%)	⬆️
unittests	80.72% <34.50%> (-1.30%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
src/easyscience/fitting/__init__.py	100.00% <100.00%> (ø)
src/easyscience/fitting/fitter.py	96.89% <ø> (-0.44%)	⬇️
.../easyscience/fitting/minimizers/minimizer_bumps.py	96.92% <75.00%> (+1.29%)	⬆️
src/easyscience/fitting/sampler.py	92.59% <92.59%> (ø)