Merge sebecker in develop

[SeBecker]

This change is 

[codecov-io]

Codecov Report

Merging #128 into develop will increase coverage by 1.64%. The diff coverage is 97.87%.

@@             Coverage Diff             @@
##           develop     #128      +/-   ##
===========================================
+ Coverage    95.24%   96.88%   +1.64%     
===========================================
  Files           16       16              
  Lines         1135     1478     +343     
===========================================
+ Hits          1081     1432     +351     
+ Misses          54       46       -8

Impacted Files	Coverage Δ
grmpy/estimate/estimate.py	100% <100%> (+5.12%)	:arrow_up:
grmpy/test/test_integration.py	100% <100%> (ø)	:arrow_up:
grmpy/simulate/simulate.py	100% <100%> (ø)	:arrow_up:
grmpy/simulate/simulate_auxiliary.py	99.34% <100%> (+0.08%)	:arrow_up:
grmpy/check/check.py	100% <100%> (ø)	:arrow_up:
grmpy/read/read.py	100% <100%> (+4.34%)	:arrow_up:
grmpy/test/auxiliary.py	79.66% <100%> (+12.41%)	:arrow_up:
grmpy/test/test_unit.py	95.93% <94.93%> (-0.39%)	:arrow_down:
grmpy/read/read_auxiliary.py	97.1% <96.77%> (+0.27%)	:arrow_up:
grmpy/estimate/estimate_auxiliary.py	97.4% <97.64%> (+1.36%)	:arrow_up:
... and 2 more

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