Add command to automate issue assignment

[kachawla]

Adding support for /assign command to manage assignment of issue. Copied over from Radius repo https://github.com/radius-project/radius/blob/main/.github/scripts/radius-bot.js.

[brooke-hamilton]

Would we also need to copy radius-project/radius/.github/workflows/radius-bot.yaml to this repo?

Should we put the radius-bot.js file in the root radius-project/.github repo and put the radius-bot.yaml file in each repo?

Related to #1641

[kachawla]

Would we also need to copy radius-project/radius/.github/workflows/radius-bot.yaml to this repo?

Ah yes, the workflow needs to be copied over as well, thanks for catching that. I'll update the PR.

Should we put the radius-bot.js file in the root radius-project/.github repo and put the radius-bot.yaml file in each repo?

Based on https://docs.github.com/en/communities/setting-up-your-project-for-healthy-contributions/creating-a-default-community-health-file#supported-file-types I gathered that only limited types of files can be applied org wide through .github repo. But my understanding on this is limited, so let me know if that's not the case. Not a fan of copying the same file in multiple repo :)

Related to #1641

Thanks for sharing! Assigned myself to it.

[kachawla]

Would we also need to copy radius-project/radius/.github/workflows/radius-bot.yaml to this repo?

Ah yes, the workflow needs to be copied over as well, thanks for catching that. I'll update the PR.

@brooke-hamilton Updated

[brooke-hamilton]

This PR is good. 🚀