Adopt issue templates in GitHub repos

[dan-bowerman]

Those fancy issue templates the ramp4 team is using? Let's get 'em in here. For reference: https://github.com/ramp4-pcar4/ramp4-pcar4/issues/new/choose

• [ ] https://github.com/ramp4-pcar4/story-ramp/issues/new
• [ ] https://github.com/ramp4-pcar4/storylines-editor/issues/new
• [ ] https://github.com/ramp4-pcar4/config-editor/issues/new