Start working on a license part

Refs #11.

src/Parts/License/Part.php

@@ -0,0 +1,23 @@
+<?php
+
+namespace Studio\Parts\License;
+
+use Composer\Spdx\SpdxLicenses;
+use Studio\Filesystem\Directory;
+use Studio\Parts\AbstractPart;
+
+class Part extends AbstractPart
+{
+
+    public function setupPackage($composer, Directory $target)
+    {
+        if ($this->input->confirm('Do you want to configure a license for your project?')) {
+            $licenses = new SpdxLicenses();
+
+            // 1. Choose a license from a list
+            // 2. Generate the license file, with year and name
+            // 3. Add it to composer.json
+        }
+    }
+
+}