Ability to call "before-breadcrumb"

[MichalBryxi]

In my app all the ui.click breadcrumb look like div.eight.wide.column > a#ember3796.ui.labeled.icon.button.ember-view, which is not very helpful.

But (for example) I do use a lot of data-test helpers, which would have much more meaning for me when going through the sentry trace. They tend to be way more descriptive of the function of that visual component.

There is a possibility to change the breadcrumb on sentry report via before-breadcrumb hook. From the docs of ember-cli-sentry, I don't think it's easily accessible?

Would it be possible to:

1. Add option to call before-breadcrumb hook using ember-cli-sentry.
2. Add a documentation to readme on how-to do that?

Thanks

[Turbo87]

beforeBreadcrump is an API of @sentry/browser, but not of raven-js, which we are currently using. see #133 for more information about that.