WIP:Displaying physics capsule for a character - it is currently disabled.

indra/llcommon/lluuid.cpp

indra/llcommon/lluuid.h

indra/newview/llfloaterpathfindingobjects.cpp

indra/newview/llfloaterpathfindingobjects.h

indra/newview/llpathfindingcharacter.cpp

indra/newview/llpathfindingcharacterlist.cpp

indra/newview/pipeline.cpp

indra/newview/pipeline.h

...w/skins/default/xui/en/floater_pathfinding_characters.xml

...iew/skins/default/xui/en/floater_pathfinding_linksets.xml