fix imports and new R(xyz) feature function

[dehann]

No description provided.

[codecov-io]

Codecov Report

Merging #9 into master will decrease coverage by 0.15%.
The diff coverage is 0%.

@@            Coverage Diff            @@
##           master      #9      +/-   ##
=========================================
- Coverage   50.45%   50.3%   -0.16%     
=========================================
  Files           1       1              
  Lines         329     328       -1     
=========================================
- Hits          166     165       -1     
  Misses        163     163

Impacted Files	Coverage Δ
src/TransformUtils.jl	50.3% <0%> (-0.16%)	⬇️

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