Speed up hole nesting#20

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rjmac wants to merge 7 commits intorozap:masterfrom

rjmac:rjm/speed-up-hole-nesting

Commits on Jan 6, 2021

Correct crate name in mix.exs
rjmac
committed

Commits on Jan 7, 2021

Move the is_clockwise check into Rust too
rjmac
committed

Commits on Jun 23, 2021

Port to rustler 0.22.0
rjmac
committed