SH-3405 WIP convert existing stats to lltrace system

indra/llcommon/llstatenums.h

indra/llcommon/lltrace.h

indra/llcommon/lltracerecording.h

indra/llcommon/llunit.h

indra/llmessage/llassetstorage.cpp

indra/llui/llstatgraph.cpp

indra/llui/llstatgraph.h

indra/newview/llagent.cpp

indra/newview/llappviewer.cpp

indra/newview/llchatbar.cpp

indra/newview/llcompilequeue.cpp

indra/newview/llfloaterabout.cpp

indra/newview/llfloaterregioninfo.cpp

indra/newview/llfloatersnapshot.cpp

indra/newview/llgesturemgr.cpp

indra/newview/lllandmarklist.cpp

indra/newview/llnearbychatbar.cpp

indra/newview/llpanelface.cpp

indra/newview/llpreviewgesture.cpp

indra/newview/llpreviewnotecard.cpp