[TIMOB-25027] Filter emulators based off supportedWindowsPhoneSDKVersions parameter

[ewanharris]

• If the user of this library specifies the supportedWindowsPhoneSDKVersions option then we will only detect and report the emulators for that version
• Added coverage to the library. I only added coverage to the main mocha test run as adding to the others seems pointless given that they only target a single file. Current results are below, I don't believe it's enforcing any percentage right now but I need to double check (update, travis passed so yeah there is no enforcement of percentages currently)

  
  ------------------|----------|----------|----------|----------|----------------|
  File              |  % Stmts | % Branch |  % Funcs |  % Lines |Uncovered Lines |
  ------------------|----------|----------|----------|----------|----------------|
  All files         |    59.77 |    47.37 |    70.29 |    59.58 |                |
  windowslib       |    33.87 |        0 |        0 |    34.43 |                |
  index.js        |    33.87 |        0 |        0 |    34.43 |... 150,151,152 |
  windowslib/lib   |    60.78 |    48.39 |    73.09 |    60.56 |                |
  assemblies.js   |    73.17 |    73.33 |    71.43 |    73.17 |... ,76,104,109 |
  certs.js        |    16.91 |     3.95 |    17.65 |    16.91 |... 312,314,315 |
  device.js       |    61.25 |     47.5 |    68.75 |    61.25 |... 198,199,200 |
  emulator.js     |    70.65 |    68.04 |     87.5 |    70.65 |... 434,450,454 |
  env.js          |    75.61 |       75 |      100 |    79.49 |... ,97,112,113 |
  logrelay.js     |    80.77 |    73.53 |     87.5 |    80.77 |... 106,146,147 |
  process.js      |     91.3 |    86.67 |      100 |    92.86 |       44,45,46 |
  utilities.js    |    70.45 |    57.69 |       90 |    70.45 |... 100,101,103 |
  visualstudio.js |    68.71 |    58.33 |       80 |    68.32 |... 413,414,415 |
  windowsphone.js |    93.52 |    70.69 |      100 |    93.14 |... 247,251,257 |
  winstore.js     |    46.77 |    32.77 |    42.86 |    45.96 |... 424,456,462 |
  wptool.js       |    55.65 |    40.68 |    70.97 |    55.67 |... 8,1058,1059 |
  ------------------|----------|----------|----------|----------|----------------|

=============================== Coverage summary =============================== Statements : 59.77% ( 988/1653 ) Branches : 47.37% ( 406/857 ) Functions : 70.29% ( 239/340 ) Lines : 59.58% ( 973/1633 )

## Verification

This isn't really doesn't have proper verification steps until the titanium_mobile_windows PR is ready. So I'll update it then

[ewanharris]

@infosia Yeah I think if we merge #79 first and then this once that is merged and published. I bumped to 0.6.0 as this is technically a new feature so minor bump seemed appropriate