Standard Github Workflow & Issue Template

[hmzakhalid]

Hi there,

I've created a new pull request that adds an issue template and a basic Python workflow YAML file to the ControlNet repository.

Issue Template:

I've created a new issue template that includes sections for a clear and concise description of the issue, expected and actual behavior, steps to reproduce, environment details, and any additional information. This will help standardize issue reporting and make it easier for developers to diagnose and fix problems.

Workflow YAML File:

I've also created a new workflow YAML file that will help find common linting issues and errors. I already found 2 errors with this workflow. they may be intended but it creates confusion for people who are new and trying to contribute.

Please let me know if there's anything else I can do to help. Thanks!