pass through **kwargs to ensure additional args like skew can be set

[kschu91]

fixes #785

[tpazderka]

I am not aware of anything that should prevent this fix. Please reformat the PR with black (make blacken) in order to pass the CI.

[codecov-commenter]

Codecov Report

Merging #786 (692a8b0) into master (ae5702a) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #786   +/-   ##
=======================================
  Coverage   63.72%   63.72%           
=======================================
  Files          64       64           
  Lines       11843    11843           
  Branches     2095     2095           
=======================================
  Hits         7547     7547           
  Misses       3700     3700           
  Partials      596      596           

Impacted Files	Coverage Δ
src/oic/oauth2/__init__.py	69.45% <ø> (ø)

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[tpazderka]

Merged