Add creational patterns, Interpreter; remove scripts; update README

01-creational/factory-method/SmsNotification.java

@@ -0,0 +1,11 @@
+package factorymethod;
+
+public class SmsNotification implements Notification {
+    private final String phone;
+    public SmsNotification(String phone) { this.phone = phone; }
+
+    @Override
+    public void send(String message) {
+        System.out.println("SMS -> " + phone + ": " + message);
+    }
+}