Merge with head

indra/cmake/Copy3rdPartyLibs.cmake

indra/llcommon/lleventcoro.h

indra/llplugin/llpluginsharedmemory.cpp

indra/llplugin/llpluginsharedmemory.h

indra/llrender/llfontgl.cpp

indra/llui/llscrollcontainer.cpp

indra/llui/lltextbase.cpp

indra/llui/lltextbase.h

indra/llui/llui.cpp

indra/llui/lluiimage.cpp

indra/llui/lluiimage.h

indra/llwindow/llwindow.h

indra/llwindow/llwindowheadless.h

indra/llwindow/llwindowmacosx.cpp

indra/llwindow/llwindowmacosx.h

indra/llwindow/llwindowmesaheadless.h

indra/llwindow/llwindowsdl.cpp

indra/llwindow/llwindowsdl.h

indra/llwindow/llwindowwin32.cpp

indra/llwindow/llwindowwin32.h