iOS: Fix running cordova build ios for emulators with Xcode 10.1 RELEASE

[kashban]

Successor of #428, ready for XCode 10.1 release.

Platforms affected

iOS

What does this PR do?

Fix scanning for available emulators to build / run against.

What testing has been done on this change?

Tests have been run on a Mac mini with Mac OS X Mojave 10.14 and Xcode 10.1.

Checklist

• Reported an issue in the JIRA database
• Commit message follows the format: "CB-3232: (android) Fix bug with resolving file paths", where CB-xxxx is the JIRA ID & "android" is the platform affected.
• Added automated test coverage as appropriate for this change.

[dpogue]

👍 from me

[codecov-io]

Codecov Report

Merging #451 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #451   +/-   ##
=======================================
  Coverage   74.29%   74.29%           
=======================================
  Files          12       12           
  Lines        1564     1564           
=======================================
  Hits         1162     1162           
  Misses        402      402

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[kashban]

Great! Looking forward to see this in the next release. Cheers!