Add another Rich UI sample

samples/rich-gui-basic-sample2.lua

@@ -0,0 +1,14 @@
+-- name = "Rich GUI Basic sample #2"
+
+function on_resume()
+    my_gui = gui{
+        {"progress", "Progress #1", {progress = 30}},
+        {"new_line", 1},
+        {"progress", "Progress #2", {progress = 60}},
+        {"new_line", 1},
+        {"progress", "Progress #3", {progress = 90}},
+    }
+
+    my_gui.render()
+end
+