move up files to one level and erase default public key

shared_modules/volume.tf

@@ -0,0 +1,9 @@
+resource "libvirt_volume" "vm_disk" {
+  count  = var.instance_count
+  name   = "${var.vm_name}-${count.index}"
+  pool   = "${var.vm_name}-pool"
+  source = var.image_location
+  format = "qcow2"
+
+  depends_on = [libvirt_pool.tf_tmp_storage]
+}