Add cos, cosh, sin, sinh, tan, tanh Column functions

[Avasil]

Related to #164

[codecov-io]

Codecov Report

Merging #265 into master will decrease coverage by 1.5%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master     #265      +/-   ##
==========================================
- Coverage   96.22%   94.71%   -1.51%     
==========================================
  Files          52       52              
  Lines         926      946      +20     
  Branches       11       11              
==========================================
+ Hits          891      896       +5     
- Misses         35       50      +15

Impacted Files	Coverage Δ
...la/frameless/functions/NonAggregateFunctions.scala	100% <100%> (ø)	⬆️
...aset/src/main/scala/frameless/ops/GroupByOps.scala	66.66% <0%> (-31.7%)	⬇️
...c/main/scala/frameless/TypedDatasetForwarded.scala	71.42% <0%> (-2.86%)	⬇️
...main/scala/frameless/ops/RelationalGroupsOps.scala	97.61% <0%> (+18.45%)	⬆️

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[OlivierBlanvillain]

LGTM, thanks!