TODO: Issue templates

[freefd]

Defining an issue template with mandatory fields. Categories:

1. Bug
   See example https://github.com/blakeblackshear/frigate/discussions/new?category=bug-report
2. Feature Request / Enhancement

**Describe what you are trying to accomplish and why in non technical terms**
I want to be able to ... so that I can ... 

**Describe the solution you'd like**
A clear and concise description of what you want to happen.

**Describe alternatives you've considered**
A clear and concise description of any alternative solutions or features you've considered.

**Additional context**
Add any other context or screenshots about the feature request here.

3. General
   See example https://github.com/blakeblackshear/frigate/discussions/new?category=general-support

[0x2142]

Yeah that's probably a good idea at this point. I honestly never expected anyone to really use this 😅

But I suppose it's time to set something like this up 👍