cunity: parse_examples: test example files

Test parsing and printing example files

tests/inputs/test2.expected

@@ -0,0 +1,18 @@
+{
+	"menu":	{
+		"id":	"file",
+		"value":	"File",
+		"popup":	{
+			"menuitem":	[{
+					"value":	"New",
+					"onclick":	"CreateNewDoc()"
+				}, {
+					"value":	"Open",
+					"onclick":	"OpenDoc()"
+				}, {
+					"value":	"Close",
+					"onclick":	"CloseDoc()"
+				}]
+		}
+	}
+}