Integrate AKS with other azure services.

[deepakttn]

Is your feature request related to a problem? Please describe.
We can integrate this AKS cluster with other azure services like log-analytics, vnet integration and keyvault etc..

Describe the solution you'd like
We can write the resources or if we have already present any service terraform module i.e terraform-azure-vnet then we can directly use that terraform module in this AKS module.