add Aqua tests

[jverzani]

No description provided.

[codecov]

Codecov Report

Patch coverage: 57.14% and project coverage change: -0.12 ⚠️

Comparison is base (8158b6d) 85.29% compared to head (fba5792) 85.17%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #360      +/-   ##
==========================================
- Coverage   85.29%   85.17%   -0.12%     
==========================================
  Files          35       35              
  Lines        2135     2138       +3     
==========================================
  Hits         1821     1821              
- Misses        314      317       +3     

Impacted Files	Coverage Δ
src/DerivativeFree/order0.jl	80.00% <0.00%> (-20.00%)	⬇️
src/convergence.jl	96.36% <0.00%> (-1.79%)	⬇️
src/Derivative/lith.jl	71.04% <100.00%> (ø)
src/Derivative/thukralb.jl	100.00% <100.00%> (ø)
src/alternative_interfaces.jl	94.73% <100.00%> (ø)

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