Add examples for Azure Disk Encryption Extension

quickstart/201-vmss-disk-encryption-extension/variables.tf

@@ -0,0 +1,16 @@
+variable "admin_password" {
+  type        = string
+  sensitive   = true
+  description = "Admin password of the virtual machine scale set"
+}
+
+variable "location" {
+  type        = string
+  description = "Location where resources will be created"
+}
+
+variable "name_prefix" {
+  type        = string
+  default     = "tftest"
+  description = "Prefix of the resource name"
+}