Device: Add unit tests and remove Q

[Menardi]

Platforms affected

Android

What does this PR do?

The main point of this PR is to increase test coverage of device.js. It's gone from 0% to 100% coverage. :)

Since I was going through device.js and figuring out how it works, I figured it was a good time to replace Q with native promises, as mentioned in CB-14158. I hope this is OK!

What testing has been done on this change?

• Ran device-related commands
• Ran unit tests

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.

[codecov-io]

Codecov Report

Merging #462 into master will increase coverage by 2.21%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master     #462      +/-   ##
==========================================
+ Coverage   52.03%   54.25%   +2.21%     
==========================================
  Files          17       17              
  Lines        1695     1694       -1     
  Branches      312      312              
==========================================
+ Hits          882      919      +37     
+ Misses        813      775      -38

Impacted Files	Coverage Δ
bin/templates/cordova/lib/device.js	100% <100%> (+77.55%)	⬆️

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[dpogue]

👍