A static generic funtion 'KEY_USE' is added at 'controllers/Control.java'. This function is used to fire skill set or item list by getting input as numeric number key from the user.
File 'controllers/UInput.java' is updated. Now it has a feature that prompts user input to use skill.
A test file 'TestUInput.java' is added to test file 'UInput.java'.
A file 'ListDr.java' is added at 'controllers/'. It is a wrapper of generic static method that manipulates list of elements such as skills or items with numeric user input. Its test file 'TestListDr.java' is added too.