Adding traces for debug of libfunc

src/main/java/avatartranslator/AvatarArithmeticOp.java

src/main/java/avatartranslator/AvatarAttribute.java

src/main/java/avatartranslator/AvatarConstant.java

src/main/java/avatartranslator/AvatarLibraryFunction.java

src/main/java/avatartranslator/AvatarTerm.java

src/main/java/avatartranslator/AvatarTermRaw.java