feat: neg operator

[0x73e]

Pull Request type

Closes #362

Please check the type of change your PR introduces:

• Bugfix
• Feature
• Code style update (formatting, renaming)
• Refactoring (no functional changes, no API changes)
• Build-related changes
• Documentation content changes
• Other (please describe):

What is the current behavior?

Missing Neg operator.

Issue Number: N/A

What is the new behavior?

Implements Neg operator.

• Implemented Neg operator

Does this introduce a breaking change?

• Yes
• No

Other information

[0x73e]

@raphaelDkhn I couldn't find any contribution guidelines in the repo. Please let me know if any docs/linting/tests, etc need to be done before PR is merged. Thanks

[raphaelDkhn]

@raphaelDkhn I couldn't find any contribution guidelines in the repo. Please let me know if any docs/linting/tests, etc need to be done before PR is merged. Thanks

Thanks @0x73e, I will review later today. Here is the contribution guideline. Here you can find a step-by-step tuto to contribute to Orion. If I see anything missing during my review, I let you know :)

[0x73e]

Thanks, totally missed this

[raphaelDkhn]

LGTM! Good first PR @0x73e thanks!

Just three small things that was missing:

• Don't forget to add trait description here. When you run docgen, it will create links in the doc.
• Add operator in compatibility file
• Add operator in Summary file

[raphaelDkhn]

@all-contributors add @0x73e for code

[allcontributors]

@raphaelDkhn

I've put up a pull request to add @0x73e! 🎉