xClusterQuorum: Add Cloud Witness to WSFC in W2016

[jmos5156]

Adding the ability to pass Azure storage account details to create a cloud witness during the creation of a WSFC

Pull Request (PR) description Adding the ability to pass Azure storage account details to create a cloud witness during the creation of a WSFC

This Pull Request (PR) fixes the following issues:

Task list:

• [ ] Change details added to Unreleased section of CHANGELOG.md?
• [ ] Added/updated documentation, comment-based help and descriptions in .schema.mof files where appropriate?
• [ ] Examples appropriately updated?
• [ ] New/changed code adheres to Style Guidelines?
• [ ] Unit and (optional) Integration tests created/updated where possible?

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This change is 

[msftclas]

All CLA requirements met.

[codecov-io]

Codecov Report

Merging #160 into dev will decrease coverage by <1%. The diff coverage is 92%.

@@         Coverage Diff         @@
##            dev   #160   +/-   ##
===================================
- Coverage   100%    99%   -1%     
===================================
  Files         7      7           
  Lines       413    408    -5     
===================================
- Hits        413    406    -7     
- Misses        0      2    +2

[johlju]

@jmos5156 First, thanks for sending in these changes. It seems that you have not updated your branch with the latest changes? Your PR will remove a lot of changes, for example comment-based help. Can you please do git rebase (do not use git pull or git merge) on your branch against the dev branch. Please see here how to do that; https://github.com/PowerShell/DscResources/blob/master/GettingStartedWithGitHub.md#resolve-merge-conflicts

[johlju]

@jmos5156 These changes has already been suggested in PR #153. Does this change build on top of that PR?

[johlju]

Closing this PR since cloud witness functionality has just been merged in PR #153. If this PR adds more functionality, then please reopen this PR and submit new commits or please resubmit a new PR.