Cache many more settings called in draw or heavy loops

indra/newview/alcontrolcache.cpp

indra/newview/alcontrolcache.h

indra/newview/llagent.cpp

indra/newview/llfloateravatarpicker.cpp

indra/newview/llfloaterimcontainer.cpp

indra/newview/llfloatersnapshot.cpp

indra/newview/llpanelpeople.cpp

indra/newview/llsnapshotlivepreview.cpp

indra/newview/lltexturectrl.cpp

indra/newview/lltextureview.cpp

indra/newview/llviewerjoystick.cpp

indra/newview/llviewerkeyboard.cpp

indra/newview/llviewertexlayer.cpp

indra/newview/llvoavatar.cpp

indra/newview/llworldmapview.cpp