Remove matrix calculation from CountGeoVolumes
Remove matrix calculation from CountGeoVolumes

One cannot set _visibility flag based on matrix, 
while same node can appear in different branches of 
geometry hierarchy and therefore may be different.
Such analysis should be done with three.js objects in 
drawNode method, where complete (or visisble) hierarchy is reproduced


bellenot/jsroot,linev/jsroot,linev/jsroot,root-project/jsroot,root-project/jsroot,bellenot/jsroot,bellenot/jsroot