Add GitHub issue templates

[CJCrafter]

There are some error types that we might except to happen, and we should have forums that request log information for those specific errors.

For example, an uncaught JsonSyntaxException implies that the OpenAI api changed, and now the data classes are out of date. We should have an error specifically for that case.

Possible issue types:

• JsonSyntaxException
• Bug Report
• Feature Request