added in and out folder for easy testing

in/Example.relast

+
+
+StateMachine ::= Element*;
+abstract Element ::= <Label:String>;
+State : Element ::=;
+Transition : Element ::=;
+
+rel StateMachine.initial -> State;
+rel StateMachine.final* -> State;
+rel State.outgoing* <-> Transition.from;
+rel State.incoming* <-> Transition.to;