New analysis for AT

modeling/AVATAR/CoffeeMachine_Avatar.xml

src/main/java/attacktrees/Attack.java

src/main/java/attacktrees/AttackNode.java

src/main/java/attacktrees/ORNode.java

src/main/java/attacktrees/XORNode.java

src/main/java/ui/atd/ATDAttack.java

ttool/src/test/java/ui/atd/AttackTreeAnalysisTest.java

...rc/test/resources/ui/atd/input/testAttackTreeAnalysis.xml