GUI class updates
commit gui
GUI add method commit
Display and Add Works!
Jessica and Tom's code combined commit
Merge remote-tracking branch 'origin/jess'

Conflicts:
	Project/src/Book.java
	Project/src/GUI.java
	Project/src/Library.java
	Project/src/Main.java
	Project/src/Media.java
	Project/src/Song.java
	Project/src/Video.java
	Project/src/VideoGame.java