Add API to add an IpSecurityRestriction while Defining a WebApp

[dpetillo]

I needed this functionality added to the API. If it can be added to master, I think ill need advisement on my API signature(s) and how to properly regenerate the model:

src\ResourceManagement\AppService\Generated\Models\IpSecurityRestriction.cs

The copy in this commit was taken from https://github.com/Azure/azure-sdk-for-net and lightly modified.

[msftclas]

All CLA requirements met.

[azuresdkci]

Can one of the admins verify this patch?

[hovsepm]

@azuresdkci test this please.

[praries880]

@dpetillo
you can undo these changes, The model got updated with these properties added to it :

azure-libraries-for-net/src/ResourceManagement/AppService/Generated/Models/IpSecurityRestriction.cs

Line 51 in 303240f

public IpSecurityRestriction(string ipAddress = default(string), string subnetMask = default(string), string vnetSubnetResourceId = default(string), int? vnetTrafficTag = default(int?), int? subnetTrafficTag = default(int?), string action = default(string), IpFilterTag? tag = default(IpFilterTag?), int? priority = default(int?), string name = default(string), string description = default(string))

[praries880]

@dpetillo
Thanks for the PR :)

We have already updated the models to include the changes you have here. We still need to add a public API to make IPSecurityRestriction available on the Fluent API though. We will get try to get the suggestions here in webapps in the near future.

The API changes you made do look good, but we still have to look into the update (PATCH) scenario and add tests for the same.

[yaohaizh]

@ChenTanyi please follow with this PR. Thanks.