What
Create a proof of concept IOS Metrics SDK, hooked up to the mobile app metrics server spike.
This Proof on concept will help us to validate use cases for IOS SDK and showcase real usages.
Previously we weren't able to do that as we were missing the real use case for SDK.

We will follow the same aproach as in Android.

Why
To prove it is possible to:

• use the IOS Core SDK when building a service SDK
• collect and visualize mobile app metrics data (sdk version, app version) from a mobile device

How
The mobile app metrics server spike is tracked in AEROGEAR-1894.
Write a service sdk that hooks up to the mobile apps metrics service in that task.