Add sample file for Ceylon

samples/ceylon/Foo.ceylon

@@ -0,0 +1,15 @@
+doc "Test function for Ceylon"
+by  "Enrique"
+shared void test() {
+  print("test");
+}
+
+doc "Test class for Ceylon"
+shared class Test(name) satisfies Comparable<Test> {
+    shared String name;
+    shared actual String string = "Test " name ".";
+
+    shared actual Comparison compare(Test other) {
+        return name<=>other.name;
+    }
+}