Thanks for the patches!

I made a couple of changes along the way. I think the biggest one was
rust-scad-1 I checked upstream and was able to replace nalgebra@0.16
with 0.27 which meant we could drop a couple of patches.  I also changed
exa into a deprecated package which we can remove at a later date so
that way it doesn't just disappear.

Patches added to the rust-team branch

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Efraim Flashner   <efraim@flashner.co.il>   רנשלפ םירפא
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