parkrunner: weekly 5k results

* NEW - Your digital barcode is now displayed!
* Keep track of your weekly 5k run results with parkrunner
* Analyse your performance over time with result histories.
* Follow your friends and family and see all their results plus your own in one place.
* Check your Runner and Volunteer stats.
* Track your progress towards those all important run/walk/jog/volunteer milestones - the 10, 25, 50, 100, 250 & 500
* Find your nearest parkrun with the event map.
* Check the latest parkrun cancellations.

parkrunner is a personal project, developed in my spare time and in no way associated with the parkrun organisation.

Permissions:

* Camera permission is required only if you wish to sign into the app by scanning your barcode.
* Location permission is required only if you wish to see your current location on the event map.