Added sample for a SQL private endpoint for Azure Private Link

quickstart/201-private-link-sql-database/provider.tf

@@ -0,0 +1,20 @@
+terraform {
+  required_providers {
+    azapi = {
+      source  = "azure/azapi"
+      version = "~>1.5"
+    }
+    azurerm = {
+      source  = "hashicorp/azurerm"
+      version = "~>3.0"
+    }
+    random = {
+      source  = "hashicorp/random"
+      version = "~>3.0"
+    }
+  }
+}
+
+provider "azurerm" {
+  features {}
+}