Rename kargs to args

[eric-wieser]

The typical python function signature is f(*args, **kwargs) not f(*kargs, **kwargs).

The kw in kwargs stands for keyword, but the first k doesn't mean anything.

[codecov]

Codecov Report

Merging #55 into master will not change coverage.
The diff coverage is 72.89%.

@@           Coverage Diff           @@
##           master      #55   +/-   ##
=======================================
  Coverage   66.57%   66.57%           
=======================================
  Files           8        8           
  Lines        4906     4906           
=======================================
  Hits         3266     3266           
  Misses       1640     1640

Impacted Files	Coverage Δ
galgebra/lt.py	43.09% <42.85%> (ø)	⬆️
galgebra/ga.py	74.32% <60.71%> (ø)	⬆️
galgebra/mv.py	61.61% <80.55%> (ø)	⬆️

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[utensil]

LGTM. As long as the conflicts are solved, we're good to go!