initialize backup vault module with configuration, outputs, and variable definitions

outputs.tf

@@ -0,0 +1,15 @@
+output "backup_vault_id" {
+  value = azurerm_data_protection_backup_vault.this.id
+}
+
+output "backup_vault_name" {
+  value = azurerm_data_protection_backup_vault.this.name
+}
+
+output "backup_vault_identity_principal_id" {
+  value = try(azurerm_data_protection_backup_vault.this.identity[0].principal_id, null)
+}
+
+output "backup_vault_identity_tenant_id" {
+  value = try(azurerm_data_protection_backup_vault.this.identity[0].tenant_id, null)
+}