Added in Q2D histograms (requires -A)

Added in Q2D histograms (requires -A)

As an example, the buckets are in seconds:

==================== Q2D Histogram ====================

       DEV | <.005 <.010 <.025 <.050 <.075 <.100 <.250 <.500 < 1.0 >=1.0
 --------- | ===== ===== ===== ===== ===== ===== ===== ===== ===== =====
 ( 66, 80) |  61.2   7.9  12.1   7.9   3.0   1.4   1.5   0.2   0.0   4.6
 ( 65,192) |  42.3   5.0   8.7  30.0   8.9   3.0   1.8   0.1   0.0   0.1
 ( 65,128) |  34.3   5.3   8.9  32.0   9.7   3.7   5.3   0.6   0.0   0.1
 ( 66,  0) |  45.5   9.9  19.0  14.8   4.6   1.2   0.3   0.0   0.0   4.7
 ( 65, 48) |  50.2   4.6   7.2  27.6   6.9   2.1   1.1   0.0   0.0   0.1
 ( 66, 32) |  66.4   6.7  10.9   7.0   2.5   1.1   0.6   0.1   0.0   4.7
 ( 65,224) |  33.9   9.6  20.6  17.8   7.3   3.1   3.3   0.5   0.1   3.8
 ( 65,112) |  35.3   5.2   8.7  30.8   9.3   3.9   5.6   0.9   0.1   0.1
 ( 65, 80) |  57.9   4.6   6.6  25.2   4.7   0.8   0.2   0.0   0.0   0.1
 ( 65,240) |  62.6   8.1  13.1   7.7   2.3   0.6   0.5   0.0   0.0   5.1
 ( 66,112) |  59.6   8.0  13.1   8.6   3.3   1.5   1.2   0.1   0.0   4.6
 ( 65,144) |  45.8   5.1   7.9  29.3   7.8   2.5   1.4   0.0   0.0   0.1
 ( 65,176) |  43.2   5.2   8.9  30.8   8.3   2.5   1.0   0.0   0.0   0.1
 ( 66, 16) |  77.0   5.4   7.4   3.3   0.7   0.3   0.7   0.1   0.0   5.0
 ( 65, 96) |  54.6   4.9   7.2  26.6   5.3   1.0   0.2   0.0   0.0   0.1
 ( 66, 48) |  71.0   6.8  10.5   5.4   0.9   0.1   0.1   0.0   0.0   5.2
 ( 65,208) |  43.5   5.6   8.5  31.0   7.2   2.2   1.9   0.0   0.0   0.1
 ( 66,128) |  69.5   7.0  10.3   6.2   1.5   0.3   0.1   0.0   0.0   5.0
 ( 65, 64) |  59.9   4.2   6.0  24.6   4.2   0.8   0.1   0.0   0.0   0.1
 ( 66, 64) |  62.6   8.1  12.7   7.9   2.4   0.6   0.1   0.0   0.0   5.4
========== | ===== ===== ===== ===== ===== ===== ===== ===== ===== =====
       AVG |  52.9   6.2  10.0  20.1   5.3   1.7   1.4   0.2   0.0   2.1