Convert print statements to logger.debug statements

[willgdjones]

This is tremendously helpful when tracking down bugs that run on cloud services!

[codecov-io]

Codecov Report

Merging #31 into develop will increase coverage by 1.34%.
The diff coverage is 77.77%.

@@             Coverage Diff             @@
##           develop      #31      +/-   ##
===========================================
+ Coverage    88.68%   90.03%   +1.34%     
===========================================
  Files            5        5              
  Lines         1052     1094      +42     
  Branches       196      196              
===========================================
+ Hits           933      985      +52     
+ Misses          73       62      -11     
- Partials        46       47       +1

Impacted Files	Coverage Δ
src/snps/io.py	85.49% <50%> (+0.26%)	⬆️
src/snps/__init__.py	94.04% <80%> (+0.25%)	⬆️
src/snps/resources.py	94.33% <81.81%> (+4.46%)	⬆️
src/snps/utils.py	87.32% <83.33%> (+0.36%)	⬆️

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[apriha]

Thanks @willgdjones !