Add issue templates

[SergioGasquez]

Thank you for your contribution!

We appreciate the time and effort you've put into this pull request.
To help us review it efficiently, please ensure you've gone through the following checklist:

Submission Checklist 📝

• I have updated existing examples or added new ones (if applicable).
• I have used cargo xtask fmt-packages command to ensure that all changed code is formatted correctly.
• My changes were added to the CHANGELOG.md in the proper section.
• I have added necessary changes to user code to the Migration Guide.
• My changes are in accordance to the esp-rs API guidelines

Extra:

• I have read the CONTRIBUTING.md guide and followed its instructions.

Pull Request Details 📖

Description

• Created two issue templates: Bug report and feature request.
• Added two links that appear when creating a new issue for questions: GH Discussions and Matrix channel

Here is what the user would see when creating an issue

Testing

Create a new issue on my fork: https://github.com/SergioGasquez/esp-hal/issues/new/choose

• Bug test: Test issue SergioGasquez/esp-hal#5
• FR test: FR test SergioGasquez/esp-hal#6

[bjoernQ]

Thanks! I think this is a good start and I guess we'll soon see if this makes things better and what to improve

[JurajSadel]

Thanks!

[MabezDev]

Thanks!