CommNet v2.0 update

level | method | cAcc | mCIoU | ACD | mCCD | mAP50 | mmAP
-- | -- | -- | -- | -- | -- | -- | --
easy | default | 96.25% | 99.28% | 0.05 | 0.01 | 99.32% | 86.7%
medium | default | 94.06% | 99.34% | 0.08 | 0.01 | 99.21% | 81.07%
hard | default | 90.59% | 99.23% | 0.13 | 0.01 | 98.96% | 79.58%
averaged | default | 93.61% | 99.28% | 0.09 | 0.01 | 98.91% | 81.27%