Support Shield / Badges

### Problem Statement

Missing a way to easly see errors outside of Sentry.

### Solution Brainstorm

Would be nice to have a status badge / shield to summarize unsolved errors in repository [example](https://support.snyk.io/hc/en-us/articles/360003997277-Badge-Support-for-Repositories)

Many applications provides this kind of integrations to display differents stats, Sentry could be one of those.

Would be nice to have the same style formats provided by [shield.io](https://shields.io/) because are the mainly used:

- plastic
- flat
- flat-square
- for-the-badge
- social

also with the possibility to customize if icon should be present or not.

### Product Area

Dashboards