Add new exception to be thrown when clipboard isn't available

src/main/java/me/goudham/exception/CannotAccessClipboardException.java

@@ -0,0 +1,10 @@
+package me.goudham.exception;
+
+/**
+ * Thrown when {@link java.awt.datatransfer.Clipboard} is unavailable to be accessed
+ */
+public class CannotAccessClipboardException extends Throwable {
+    public CannotAccessClipboardException(String exceptionMessage) {
+        super(exceptionMessage);
+    }
+}