[Sentry] Track breadcrumbs

[mplorentz]

Sentry uses breadcrumb tracking to give developers an idea of what the user was doing before a crash, error, or transaction. Some breadcrumbs are tracked automatically, like HTTP requests, but we have not added any to the default data.

Let's audit the app and start tracking these to assist us in debugging issues. For starters we should have our Analytics library create a breadcrumb automatically whenever an analytics event is fired. If there are other user actions that warrant a breadcrumb we should track those also. In general any navigation, button press, or other significant action from the user should create a breadcrumb.