Add copy utilities to all the avatar menus and clean up inworld attachment/avatar menus

indra/newview/CMakeLists.txt

indra/newview/alavataractions.cpp

indra/newview/alavataractions.h

indra/newview/alviewermenu.cpp

indra/newview/alviewermenu.h

indra/newview/llchathistory.cpp

indra/newview/llconversationmodel.cpp

indra/newview/lldrawpoolavatar.cpp

indra/newview/llfloaterimcontainer.cpp

indra/newview/llpanelpeoplemenus.cpp

indra/newview/llpanelprofile.cpp

indra/newview/llpanelprofile.h

indra/newview/llviewermenu.cpp

indra/newview/llviewermenu.h

indra/newview/skins/default/xui/en/menu_attachment_other.xml

indra/newview/skins/default/xui/en/menu_avatar_icon.xml

indra/newview/skins/default/xui/en/menu_avatar_other.xml

indra/newview/skins/default/xui/en/menu_conversation.xml

indra/newview/skins/default/xui/en/menu_im_conversation.xml

indra/newview/skins/default/xui/en/menu_name_field.xml