Adds extra method for camera push/pop projection
Adds extra method for camera push/pop projection

kkuunnddaannkk/osgjs,gideonmay/osgjs,gideonmay/osgjs,hishamabdelrahman/osgjs,gideonmay/osgjs,hishamabdelrahman/osgjs,jtorresfabra/osgjs,cedricpinson/osgjs,jmirabel/osgjs,cedricpinson/osgjs,kkuunnddaannkk/osgjs,jmirabel/osgjs,hishamabdelrahman/osgjs,jtorresfabra/osgjs,jtorresfabra/osgjs,kkuunnddaannkk/osgjs,jmirabel/osgjs,cedricpinson/osgjs