- Adds testDelegatesStartStopLocatingUser: Tests mapViewWillStartLocatingUser and mapViewDidStopLocatingUser delegate methods
- Adds testUserTrackingModeFollow
- Adds testUserTrackingModeFollowWithHeading (disabled because of library bug)
Fakes user location via swizzled CLLocationManager and hard-coded mock coordinates and heading.
`-pauseMetricsCollection` and `-resumeMetricsCollection` were originally introduced to mitigate concerns around battery usage, but `MGLMapboxEvents` has since evolved to tread much lighter on the battery. There’s no longer any need for the client to call these methods directly. The iOS test project now includes MGLMapboxEvents.h explicitly to avoid having to package a header that will go unused.
