Log: Add Eigen convenience method for logging.
Log: Add Eigen convenience method for logging.

renzodenardi/Pangolin,randi120/Pangolin,pinglin/Pangolin,pinglin/Pangolin,renzodenardi/Pangolin,arpg/Pangolin,mp3guy/Pangolin,janjachnik/Pangolin,visigoth/Pangolin,mp3guy/Pangolin,mp3guy/Pangolin,janjachnik/Pangolin,arpg/Pangolin,tschmidt23/Pangolin,tschmidt23/Pangolin,visigoth/Pangolin,wxdzju/Pangolin,stevenlovegrove/Pangolin,stevenlovegrove/Pangolin,randi120/Pangolin,tschmidt23/Pangolin,wxdzju/Pangolin,stevenlovegrove/Pangolin