Add azure pipelines

[ericpre]

Progress of the PR

• Add azure pipelines CI to run test suite using conda-forge packages
• [n/a] update docstring (if appropriate),
• [n/a] update user guide (if appropriate),
• add an changelog entry in the upcoming_changes folder (see upcoming_changes/README.rst),
• Check formatting changelog entry in the readthedocs doc build of this PR (link in github checks)
• [n/a] add tests,
• ready for review.

[codecov]

Codecov Report

Merging #6 (bacd32a) into main (bb90340) will decrease coverage by 9.21%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main       #6      +/-   ##
==========================================
- Coverage   85.76%   76.54%   -9.22%     
==========================================
  Files          72       39      -33     
  Lines       14690     8336    -6354     
  Branches        0     1931    +1931     
==========================================
- Hits        12599     6381    -6218     
+ Misses       2091     1500     -591     
- Partials        0      455     +455     

Impacted Files	Coverage Δ
rsciio/utils/utils_readfile.py	55.14% <0.00%> (-19.12%)	⬇️
rsciio/utils/skimage_exposure.py	62.50% <0.00%> (-18.75%)	⬇️
rsciio/ripple/api.py	69.84% <0.00%> (-13.02%)	⬇️
rsciio/prz/api.py	82.39% <0.00%> (-10.57%)	⬇️
rsciio/msa/api.py	71.77% <0.00%> (-9.21%)	⬇️
rsciio/_hierarchical.py	75.90% <0.00%> (-8.79%)	⬇️
rsciio/utils/rgb_tools.py	79.62% <0.00%> (-7.41%)	⬇️
rsciio/edax/api.py	88.61% <0.00%> (-7.32%)	⬇️
rsciio/sur/api.py	71.34% <0.00%> (-7.02%)	⬇️
rsciio/image/api.py	67.50% <0.00%> (-6.25%)	⬇️
... and 54 more

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