Add login support and oobe

Tesses.YouTubeDownloader.Server/src/pages/whoami.tcross

@@ -0,0 +1,15 @@
+func Pages.WhoAmI(row)
+{
+    const html = <null>
+        <h5>Your username is: {row.username}</h5>
+
+        <h6>Permissions: </h6>
+        <ul>
+            <li>Is admin: {UserFlags.IsAdmin(row.flags)}</li>
+            <li>Can download database: {UserFlags.CanDownloadDB(row.flags)}</li>
+            <li>Can use plugins: {UserFlags.CanUsePlugins(row.flags)}</li>
+            <li>Can manage plugins: {UserFlags.CanManagePlugins(row.flags)}</li>
+        </ul>
+    </null>;
+    return Components.Shell("Settings",html ,3);
+}