stdlib: terraform support

Signed-off-by: Andrea Luzzardi <aluzzardi@gmail.com>

tests/stdlib/terraform/s3/testdata/test.tf

@@ -0,0 +1,34 @@
+terraform {
+  required_providers {
+    random = {
+      source = "hashicorp/random"
+      version = "3.1.0"
+    }
+  }
+
+  backend "s3" {
+    bucket = "dagger-ci"
+    key    = "terraform/tfstate"
+    region = "us-east-2"
+  }
+}
+
+provider "random" {
+}
+
+variable "input" {
+  type = string
+}
+
+resource "random_integer" "test" {
+  min = 1
+  max = 50
+}
+
+output "random" {
+  value = random_integer.test.result
+}
+
+output "input" {
+    value = var.input
+}