Team Nothing - Sean Roudnitsky, Ying Xin Jiang, Aidan Griffin

0. Fix submodule (done)
1. Create interface deque (done)
2. Create class QQkachoo (done)
3. Implement Essential Methods(done):
   +size() -> done +addFirst(e) -> done +addLast(e) -> done +removeFirst() -> done
   +removeLast() -> done +getFirst() -> done +getLast() -> done
   +contains(e) -> done
   +remove(e) -> done

size():
returns the number of elements in the Queue

getFirst():
returns element at index 0

getLast():
returns element at index size() - 1

addFirst(e):
adds e to index 0 of the Queue

addLast(e):
adds e to index size() - 1 of the Queue

removeFirst():
removes element at index 0
return removed element

removeLast():
removes element at index size() - 1
return removed element

contains(e):
returns whether the queue contains element e

remove(e):
removes first occurrence of e if it exists returns boolean