Changed name of pacman directory to prevent name conflicts

pacman-lab9/.gitignore

pacman-lab9/LICENSE

pacman-lab9/README.md

pacman-lab9/documentation/ghost-specification.txt

pacman-lab9/pom.xml

...9/src/main/java/edu/unl/cse/soft160/pacman/Constants.java

...-lab9/src/main/java/edu/unl/cse/soft160/pacman/Ghost.java

...-lab9/src/main/java/edu/unl/cse/soft160/pacman/Image.java

...9/src/main/java/edu/unl/cse/soft160/pacman/Interface.java

...n-lab9/src/main/java/edu/unl/cse/soft160/pacman/Maze.java

...lab9/src/main/java/edu/unl/cse/soft160/pacman/PacMan.java

...b9/src/main/java/edu/unl/cse/soft160/pacman/PowerDot.java

...-lab9/src/main/java/edu/unl/cse/soft160/pacman/Speed.java

...ab9/src/main/java/edu/unl/cse/soft160/pacman/Utility.java

...an-lab9/src/test/java/edu/unl/cse/soft160/pacman/.gitkeep