[CognitiveServices] Support getting account types (kinds).

[yangyuan]

Add Get-AzureRmCognitiveServicesAccountType cmdlet to allow customers to get available kind names.

Checklist

• I have read the Submitting Changes section of CONTRIBUTING.md
• The title of the PR is clear and informative
• The appropriate change log has been updated
• The PR does not introduce breaking changes
• If applicable, the changes made in the PR have proper test coverage
• For public API changes to cmdlets:
  • the changes have gone through a cmdlet design review (Microsoft internal partners only)
  • the cmdlet markdown files were generated using the platyPS module

Design Review:
https://github.com/Azure/azure-powershell-cmdlet-review-pr/issues/177

[MiYanni]

• Get-AzCognitiveServicesAccountType needs to be added to Az.CognitiveServices.psd1

[yangyuan]

@MiYanni

Do you mean add Get-AzCognitiveServicesAccountType to CmdletsToExport????

Right now in Az.CognitiveServices.psd1:

CmdletsToExport = 'Get-AzureRmCognitiveServicesAccount', 
               'Get-AzureRmCognitiveServicesAccountKey', 
               'Get-AzureRmCognitiveServicesAccountSkus', 
               'Get-AzureRmCognitiveServicesAccountType', 
               'Get-AzureRmCognitiveServicesAccountUsage', 
               'New-AzureRmCognitiveServicesAccount', 
               'New-AzureRmCognitiveServicesAccountKey', 
               'Remove-AzureRmCognitiveServicesAccount', 
               'Set-AzureRmCognitiveServicesAccount'

So I added Get-AzureRmCognitiveServicesAccountType and also added the alias mapping.

[MiYanni]

@yangyuan Yes. CmdletsToExport in Az.CognitiveServices.psd1 should have the same list as what is in AzureRM.CognitiveServices.psd1.

[MiYanni]

@yangyuan Ping

[yangyuan]

@MiYanni, sorry for late response, got stuck in some other tasks.

Will try to finish this RP today,

[MiYanni]

LGTM