adding trimming functionality

[codecov-commenter]

Codecov Report

Merging #7 (e33c859) into main (fed8b66) will decrease coverage by 2.02%. The diff coverage is 89.76%.

:exclamation: Current head e33c859 differs from pull request most recent head 6254bd1. Consider uploading reports for the commit 6254bd1 to get more accurate results

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@@            Coverage Diff             @@
##             main       #7      +/-   ##
==========================================
- Coverage   93.58%   91.56%   -2.02%     
==========================================
  Files          19       30      +11     
  Lines        2134     3674    +1540     
  Branches       21       60      +39     
==========================================
+ Hits         1997     3364    +1367     
- Misses        125      267     +142     
- Partials       12       43      +31     

Flag	Coverage Δ
tests	91.56% <89.76%> (-2.02%)	:arrow_down:

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
dune/iga/controlpoint.hh	100.00% <ø> (ø)
dune/iga/dunelinearalgebratraits.hh	100.00% <ø> (ø)
dune/iga/nurbsgridleafiterator.hh	87.50% <ø> (ø)
dune/iga/nurbsidset.hh	100.00% <ø> (ø)
dune/iga/nurbsintersection.hh	91.07% <ø> (-2.68%)	:arrow_down:
dune/iga/nurbslocalgeometry.hh	51.85% <ø> (ø)
dune/iga/nurbspatchdata.hh	100.00% <ø> (ø)
dune/iga/utils/linearalgebra.hh	100.00% <ø> (ø)
dune/iga/nurbsleafgridview.hh	79.22% <38.88%> (-8.46%)	:arrow_down:
dune/iga/trim/nurbstrimmer.hh	77.62% <77.62%> (ø)
... and 20 more