feat(nix): add a basic Nix environment

[blackheaven]

Description

I add a basic Nix environment.

Motivation and Context

Provide a reproducible dev environment.

How Has This Been Tested?

I've run it on my NixOS.

Screenshots / Logs (if applicable)

Types of Changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation (no code change)
• Refactor (refactoring production code)
• Other

Add a new dev tool.

Checklist:

• My code follows the code style of this project.
• I have updated the documentation accordingly.
• I have formatted the code with rustfmt.
• I checked the lints with clippy.
• I have added tests to cover my changes.
• All new and existing tests passed.

[welcome]

Thanks for opening this pull request! Please check out our contributing guidelines! ⛰️

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 41.68%. Comparing base (b604883) to head (84d16c0).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #918      +/-   ##
==========================================
- Coverage   41.74%   41.68%   -0.05%     
==========================================
  Files          21       21              
  Lines        1670     1670              
==========================================
- Hits          697      696       -1     
- Misses        973      974       +1     

Flag	Coverage Δ
unit-tests	41.68% <ø> (-0.05%)	⬇️

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[orhun]

Very cool, thanks for your contribution!

Would you be also interested in submitting another PR to test the Nix builds in the GitHub Actions CI? (similar to orhun/binsider#75)

[welcome]

Congrats on merging your first pull request! ⛰️

[blackheaven]

I'll have a look, thanks.