magma: init at 2.0.2

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MAGMA: Matrix Algebra on GPU and Multicore Architectures

Things done

• Tested using sandboxing
  (nix.useSandbox on NixOS,
  or option build-use-sandbox in nix.conf
  on non-NixOS)
• Built on platform(s)
  • NixOS
  • OS X
  • Linux
• Tested compilation of all pkgs that depend on this change using nix-shell -p nox --run "nox-review wip"
• Tested execution of all binary files (usually in ./result/bin/)
• Fits CONTRIBUTING.md.

---

[jagajaga]

Please squash commits into one.

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@jagajaga I do not know how to squash commits in an existing pull request. Should I close this and make another pull request for that?

[jagajaga]

@wavewave

git rebase -i HEAD~<Number of commits before head> # for example HEAD~3
# follow instructions
git push --force <your upstream> <your branch>

[jagajaga]

⏫ this comment is edited, please check.

[wavewave]

@jagajaga I've squashed it. Thanks!