Updated to new ARKit (Fixes compilation issues for non IOS devices)

[devedse]

Related issue

Fixes #1459

Description of changes

• Updated ARKit to the latest version
• Updated to the latest 2017 unity version

QA checklists

• [N/A] Add relevant code comments. Every API class and method should have <summary> description as well as description of parameters.
• [N/A] Add tests for new/changed/updated classes and methods!!!
• [N/A] Check out conventions in CONTRIBUTING.md.
• [N/A] Check out conventions in CODING-STYLE.md
• [TODO] Update the changelog
• [TODO] Update documentation.

Reviewers

Todo

There's some items that have to be done before this should be merged:

1. Review (Main question I have is, if this should be completely compiler excluded for non IOS devices): https://github.com/devedse/mapbox-unity-sdk/blob/develop/sdkproject/Assets/UnityARInterface/Scripts/ARKitInterface.cs
2. Check if there's any need for additional documentation / dependencies

[devedse]

@Guardiola31337 , trying to get some attention to this PR :smile:. Is this something that could be merged?

[iliasmour]

Is there any solution after all? Can we build on android platform? Please I try 2 weeks to find a solution.