Added zone redundant parameter to powershell commands.

[emgu-ms]

Added zone redundant switch parameter to the following powershell commands:

• New-AzureRmSqlDatabase
• Set-AzureRmSqlDatabase
• New-AzureRmSqlElasticPool
• Set-AzureRmSqlElasticPool

This allows customers to specify whether they want their database/elastic pool in a zone redundant ring or not. I also updated the code flow such that Set-AzureRmSqlDatabase database model always uses the new AutoRest Sdk model.

Wrote new tests targeting zone redundancy parameter and updated session records for them.

Description

---

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[maddieclayton]

@emgu-ms please fix the merge issues and push again.

[cormacpayne]

@emgu-ms a few initial comments. Also, please make sure to update the Sql change log with a short snippet of the changes you made in this PR.

[cormacpayne]

@emgu-ms please remove the three references added in this file. These packages are already loaded elsewhere.

[cormacpayne]

@akromm @jaredmoo would one of you mind taking a look at this PR?

[jaredmoo]

Signed off times infinity :)

[cormacpayne]

@jaredmoo ☺️

On-demand: https://azuresdkci.westus2.cloudapp.azure.com/job/powershell-demand/110/

LGTM once this passes