Add vgo bits

[axw]

We will probably want to add additional vgo modules for the instrumentation modules, that'll be done as a followup.

Closes #83

[codecov-io]

Codecov Report

Merging #136 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #136   +/-   ##
=======================================
  Coverage   76.83%   76.83%           
=======================================
  Files          64       64           
  Lines        3834     3834           
=======================================
  Hits         2946     2946           
  Misses        679      679           
  Partials      209      209

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