0.10.2 - Add a sub-command app builder

[vkottler]

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[codecov]

Codecov Report

Merging #19 (7eaa671) into master (3c8bfbe) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##            master       #19   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           24        25    +1     
  Lines         1336      1356   +20     
=========================================
+ Hits          1336      1356   +20     

Impacted Files	Coverage Δ
vcorelib/__init__.py	100.00% <100.00%> (ø)
vcorelib/args/__init__.py	100.00% <100.00%> (ø)

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