Add `version_utils` and `HHVersion`

[codecov[bot]]

Codecov Report

Merging #145 into master will increase coverage by 0.14%. The diff coverage is 100%.

@@            Coverage Diff             @@
##           master     #145      +/-   ##
==========================================
+ Coverage   91.68%   91.82%   +0.14%     
==========================================
  Files          43       44       +1     
  Lines        4281     4357      +76     
==========================================
+ Hits         3925     4001      +76     
  Misses        356      356

Impacted Files	Coverage Δ
hyperparameter_hunter/utils/general_utils.py	64.73% <ø> (ø)	:arrow_up:
hyperparameter_hunter/__init__.py	79.31% <ø> (ø)	:arrow_up:
hyperparameter_hunter/utils/version_utils.py	100% <100%> (ø)

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[coveralls]

Pull Request Test Coverage Report for Build 642

• 76 of 76 (100.0%) changed or added relevant lines in 1 file are covered.
• 26 unchanged lines in 1 file lost coverage.
• Overall coverage increased (+0.1%) to 91.829%

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Files with Coverage Reduction	New Missed Lines	%
hyperparameter_hunter/utils/general_utils.py	26	64.74%
<!--	Total:	26		-->

Totals
Change from base Build 638:	0.1%
Covered Lines:	4001
Relevant Lines:	4357

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💛 - Coveralls