Reinvented scopes

src/main/java/tfm/Main.java

src/main/java/tfm/scopes/BranchedScope.java

src/main/java/tfm/scopes/Scope.java

src/main/java/tfm/scopes/ScopeHolder.java

src/main/java/tfm/scopes/VariableScope.java

src/main/java/tfm/utils/DataDependencyVisitor.java

src/main/java/tfm/utils/Scope.java

src/main/java/tfm/utils/VariableExtractor.java

src/main/java/tfm/variables/Variable.java

src/main/java/tfm/variables/VariableDependency.java

src/main/java/tfm/variables/VariableSet.java

src/main/java/tfm/variables/VariableVisitor.java

src/main/java/tfm/variables/actions/VariableAction.java

src/main/java/tfm/variables/actions/VariableDeclaration.java

src/main/java/tfm/variables/actions/VariableDefinition.java

src/main/java/tfm/variables/actions/VariableUse.java

src/main/java/tfm/visitors/PDGVisitor.java