Update on arrow haeds for include/extend in ucd

src/main/java/avatartranslator/AvatarRandom.java

...tartranslator/directsimulation/AvatarSimulationBlock.java

src/main/java/myutil/GraphicLib.java

src/main/java/myutil/MyMath.java

src/main/java/ui/ucd/TGConnectorUC.java