algs4partI-004: queues WIP

Compilation:  PASSED
Style:        PASSED
Findbugs:     No potential bugs found.
API:          PASSED

Correctness:  14/32 tests passed
Memory:       26/47 tests passed
Timing:       12/24 tests passed

Raw score: 46.47% [Correctness: 65%, Memory: 10%, Timing: 25%, Style: 0%]