Add a plugin for Azure AKS k8_audit

[NissesSenap]

Motivation

Just like in AWS I want to be able to monitor my k8s audit logs in Azure.

Feature

A implementation of reading k8s_aduit logs in AKS through Log Analytics Workspace.

Alternatives

AKS also supports sending logs directly to a storage account and a event hub

But to make the initial offering as similar to AWS I think starting with Log Analytics Workspace is a good idea.

Additional context

How to manage the Azure Diagnostic resources through terraform: https://registry.terraform.io/providers/hashicorp/azurerm/latest/docs/resources/monitor_diagnostic_setting