Add new example scripts.

scripts/switch.rhai

@@ -0,0 +1,11 @@
+let arr = [42, 123.456, "hello", true, 'x', 999, 1];
+
+for item in arr {
+    switch item {
+        42 => print("The Answer!"),
+        123.456 => print(`Floating point... ${item}`),
+        "hello" => print(`${item} world!`),
+        999 => print(`A number: ${item}`),
+        _ => print(`Something else: <${item}>`)
+    }
+}