allow for setting tags in operators

[ChrisRackauckas]

No description provided.

[codecov-commenter]

Codecov Report

Merging #195 (be69ae1) into master (2b70cd9) will decrease coverage by 0.49%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #195      +/-   ##
==========================================
- Coverage   81.14%   80.64%   -0.50%     
==========================================
  Files          15       15              
  Lines         801      863      +62     
==========================================
+ Hits          650      696      +46     
- Misses        151      167      +16     

Impacted Files	Coverage Δ
src/differentiation/jaches_products.jl	96.68% <100.00%> (ø)
src/differentiation/compute_jacobian_ad.jl	89.83% <0.00%> (-1.08%)	⬇️
src/coloring/matrix2graph.jl	100.00% <0.00%> (ø)
src/coloring/greedy_d1_coloring.jl	100.00% <0.00%> (ø)
src/coloring/contraction_coloring.jl	100.00% <0.00%> (ø)
src/coloring/backtracking_coloring.jl	0.00% <0.00%> (ø)
src/coloring/greedy_star1_coloring.jl	100.00% <0.00%> (ø)
src/coloring/greedy_star2_coloring.jl	100.00% <0.00%> (ø)
src/differentiation/vecjac_products.jl	0.00% <0.00%> (ø)
src/differentiation/compute_hessian_ad.jl	100.00% <0.00%> (ø)
... and 1 more

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