reformat; package structure

R086	src/root/Main.java	src/ast/AST.java
R081	src/root/ast/expressions/AddExpression.java	src/ast/expressions/AddExpression.java
R085	src/root/ast/expressions/AndExpression.java	src/ast/expressions/AndExpression.java
R090	src/root/ast/expressions/BinaryExpression.java	src/ast/expressions/BinaryExpression.java
R095	src/root/ast/expressions/BooleanExpression.java	src/ast/expressions/BooleanExpression.java
R095	src/root/ast/expressions/ConstExpression.java	src/ast/expressions/ConstExpression.java
R085	src/root/ast/expressions/DivExpression.java	src/ast/expressions/DivExpression.java
R085	src/root/ast/expressions/EqualsExpression.java	src/ast/expressions/EqualsExpression.java
R090	src/root/ast/expressions/Expression.java	src/ast/expressions/Expression.java
R085	src/root/ast/expressions/MulExpression.java	src/ast/expressions/MulExpression.java
R088	src/root/ast/expressions/NegExpression.java	src/ast/expressions/NegExpression.java
R091	src/root/ast/expressions/NotExpression.java	src/ast/expressions/NotExpression.java
R058	src/root/ast/expressions/Operator.java	src/ast/expressions/Operator.java
R085	src/root/ast/expressions/OrExpression.java	src/ast/expressions/OrExpression.java
R081	src/root/ast/expressions/SubExpression.java	src/ast/expressions/SubExpression.java
R058	src/root/ast/expressions/Type.java	src/ast/expressions/Type.java
R096	src/root/ast/expressions/UnaryExpression.java	src/ast/expressions/UnaryExpression.java
R088	src/root/ast/expressions/XorExpression.java	src/ast/expressions/XorExpression.java
R093	src/root/visitors/EvalVisitor.java	src/ast/visitors/EvalVisitor.java
R094	src/root/visitors/GraphvizVisitor.java	src/ast/visitors/GraphvizVisitor.java
R097	src/root/visitors/SemanticVisitor.java	src/ast/visitors/SemanticVisitor.java
R086	src/root/visitors/StringVisitor.java	src/ast/visitors/StringVisitor.java
R084	src/root/visitors/Visitor.java	src/ast/visitors/Visitor.java
R099	test/root/ast/expressions/BasicSemanticTests.java	test/ast/expressions/BasicSemanticTests.java
R098	test/root/ast/expressions/BasicTests.java	test/ast/expressions/BasicTests.java
R098	test/root/visitors/AdvancedSemanticTests.java	test/ast/visitors/AdvancedSemanticTests.java
R098	test/root/visitors/AdvancedTests.java	test/ast/visitors/AdvancedTests.java