changed buildPanel/buildFloater to member functions buildFromFile

indra/integration_tests/llui_libtest/llui_libtest.cpp

indra/llui/llaccordionctrl.cpp

indra/llui/llfloater.cpp

indra/llui/llfloater.h

indra/llui/llfloaterreg.cpp

indra/llui/llpanel.cpp

indra/llui/llpanel.h

indra/llui/lluictrlfactory.h

indra/newview/llavatarlist.cpp

indra/newview/llavatarlistitem.cpp

indra/newview/llbottomtray.cpp

indra/newview/llchathistory.cpp

indra/newview/llchatitemscontainerctrl.cpp

indra/newview/llfavoritesbar.cpp

indra/newview/llfavoritesbar.h

indra/newview/llfloaternotificationsconsole.cpp

indra/newview/llfloaterregioninfo.cpp

indra/newview/llfloaterscriptlimits.cpp

indra/newview/llfloateruipreview.cpp

indra/newview/llfloaterurlentry.cpp