Wrap arguments into classes

[abergs]

Reason: In order to make arguments more readable and future API changes less likely to cause binary breaking changes to everyone we're moving many arguments into wrapping classes.

In this PR the classes are suffixed with Params, instead of popular Options/Request to avoid adding confusion as those terms are used elsewhere as part of webauthn.

[abergs]

I haven't fully reviewed this myself, but pinging @iamcarbon fyi.

[codecov-commenter]

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Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 74.72%. Comparing base (72f5a36) to head (fa91b0f).

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Additional details and impacted files

@@            Coverage Diff             @@
##           master     #556      +/-   ##
==========================================
+ Coverage   74.62%   74.72%   +0.10%     
==========================================
  Files         101      103       +2     
  Lines        2719     2730      +11     
  Branches      464      464              
==========================================
+ Hits         2029     2040      +11     
  Misses        581      581              
  Partials      109      109              

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[abergs]

@iamcarbon Please feel free to feedback on this.