feat: Add to_cudf

[martindurant]

Not too much here yet, just started writing out the template to let others get involved

[martindurant]

to remove, should only be in method

[codecov]

Codecov Report

Attention: Patch coverage is 34.61538% with 34 lines in your changes are missing coverage. Please review.

Project coverage is 82.07%. Comparing base (b749e49) to head (599e115).
Report is 66 commits behind head on main.

❗ Current head 599e115 differs from pull request most recent head bde674a. Consider uploading reports for the commit bde674a to get more accurate results

Additional details and impacted files

Files	Coverage Δ
src/awkward/operations/__init__.py	100.00% <100.00%> (ø)
src/awkward/contents/bitmaskedarray.py	70.45% <50.00%> (+0.02%)	⬆️
src/awkward/contents/content.py	74.77% <50.00%> (-0.05%)	⬇️
src/awkward/contents/listarray.py	89.34% <50.00%> (-0.10%)	⬇️
src/awkward/contents/unmaskedarray.py	73.82% <50.00%> (-0.38%)	⬇️
src/awkward/contents/bytemaskedarray.py	89.13% <33.33%> (-0.53%)	⬇️
src/awkward/operations/ak_to_cudf.py	71.42% <71.42%> (ø)
src/awkward/contents/emptyarray.py	74.87% <25.00%> (-0.75%)	⬇️
src/awkward/contents/indexedarray.py	80.35% <20.00%> (-0.69%)	⬇️
src/awkward/contents/indexedoptionarray.py	87.42% <14.28%> (-0.80%)	⬇️
... and 2 more

... and 7 files with indirect coverage changes