feat: Add comprehensive examples from multithreading and hashing lectures

src/main/java/lecture/multithreading/basics/ThreadVsRunnable.java

@@ -0,0 +1,13 @@
+package lecture.multithreading.basics;
+
+
+public class ThreadVsRunnable {
+    public static void main(String[] args) {
+
+        MyThread thread1 = new MyThread();
+        thread1.start();
+
+        Thread thread2 = new Thread(new MyRunnable());
+        thread2.start();
+    }
+}