Update lint rules, force testify/assert for tests

[Sean-Der]

Use testify's assert package instead of the standard library's testing package.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 71.91%. Comparing base (cbc578b) to head (968b386).

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #322   +/-   ##
=======================================
  Coverage   71.91%   71.91%           
=======================================
  Files          79       79           
  Lines        4746     4746           
=======================================
  Hits         3413     3413           
  Misses       1197     1197           
  Partials      136      136           

Flag	Coverage Δ
go	71.78% <ø> (ø)
wasm	69.78% <ø> (ø)

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[JoTurk]

@Sean-Der sorry i didn't see your PR before i pushed, also I didn't push this commit i did yesterday before i go to bed #323

[Sean-Der]

No that’s the best news ever @joeturki im just happy we got it!

I love how much this reduces custom code. So much of the ice code was hard to read pre this change :)