Add settings module that can be used to configure the library

[ruksi]

No description provided.

[codecov-commenter]

Codecov Report

Merging #2 into master will increase coverage by 0.40%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master       #2      +/-   ##
==========================================
+ Coverage   94.96%   95.37%   +0.40%     
==========================================
  Files           9       10       +1     
  Lines         159      173      +14     
  Branches        9       11       +2     
==========================================
+ Hits          151      165      +14     
  Misses          5        5              
  Partials        3        3              

Impacted Files	Coverage Δ
laituri/__init__.py	100.00% <ø> (ø)
laituri/docker/credential_manager/__init__.py	100.00% <ø> (ø)
...i/docker/credential_manager/credential_managers.py	100.00% <ø> (ø)
laituri/docker/credential_manager/dummy.py	100.00% <ø> (ø)
laituri/docker/credential_manager/errors.py	100.00% <ø> (ø)
laituri_tests/mock_process.py	89.47% <ø> (ø)
laituri/docker/credential_manager/docker_v1.py	100.00% <100.00%> (ø)
laituri/settings.py	100.00% <100.00%> (ø)
laituri_tests/test_credential_managers.py	93.10% <100.00%> (ø)
laituri_tests/test_general.py	100.00% <100.00%> (ø)
... and 2 more

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[ruksi]

self-merging, want to get prototype release out, will revise later if wanted