added native sensor_msgs::PointCloud2 support without conversion#9

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spuetz wants to merge 2 commits intoros-perception:hydro-develfrom

spuetz:hydro-devel

Commits on Aug 24, 2015

added native sensor_msgs::PointCloud2 support without conversion and an organized mode
spuetz
committed

Commits on Feb 1, 2016

added optional scan line skipping
spuetz
committed