added cards, buttons and texts

src/main/java/edu/ntnu/idatt2001/Main.java

target/CardGame-0.1.jar

target/classes/01c.png

target/classes/01d.png

target/classes/01h.png

target/classes/01s.png

target/classes/02c.png

target/classes/02d.png

target/classes/02h.png

target/classes/02s.png

target/classes/03c.png

target/classes/03d.png

target/classes/03h.png

target/classes/03s.png

target/classes/04c.png

target/classes/04d.png

target/classes/04h.png

target/classes/04s.png

target/classes/05c.png

target/classes/05d.png