Add missing github issue/pr templates

[kaisermann]

This an automated pull request that aims to:

• Add PR template
• Add issue templates

[vtex-io-ci-cd[bot]]

Hi! I'm VTEX IO CI/CD Bot and I'll be helping you to publish your app! 🤖

Please select which version do you want to release:

• [ ] Patch

• [ ] Minor

• [ ] Major

And then you just need to merge your PR when you are ready! There is no need to create a release commit/tag.

• [x] No thanks, I would rather do it manually 😞

[vtex-io-docs-bot[bot]]

Beep boop :robot:

I noticed you didn't make any changes at the docs/ folder

• [x] There's nothing new to document :thinking:
• [ ] I'll do it later :disappointed:

In order to keep track, I'll create an issue if you decide now is not a good time

• [ ] I just updated :tada::tada: