add relast version of simplecfg

reusablecfg/.gitignore

reusablecfg/LICENSE

reusablecfg/build.gradle

reusablecfg/src/main/jastadd/AlreadyClosedAnalysis.jrag

reusablecfg/src/main/jastadd/CFG.ast

reusablecfg/src/main/jastadd/CfgSearch.jrag

reusablecfg/src/main/jastadd/ClassPathFilter.ast

reusablecfg/src/main/jastadd/ClassPathFilter.jrag

reusablecfg/src/main/jastadd/Findings.jrag

...ablecfg/src/main/jastadd/NullableDereferenceAnalysis.jrag

reusablecfg/src/main/jastadd/PrintCfg.jrag

reusablecfg/src/main/jastadd/PrintCfgTest.jrag

reusablecfg/src/main/jastadd/SimpleCFG.jrag

reusablecfg/src/main/jastadd/VariableDeclarationScope.jrag

...tudresden/inf/st/reusablecfg/ExtendJAnalyzerFrontend.java

.../de/tudresden/inf/st/reusablecfg/ExtendJAnalyzerMain.java

...c/main/java/de/tudresden/inf/st/reusablecfg/PrintCfg.java

...n/java/de/tudresden/inf/st/reusablecfg/TestGenerator.java

...va/de/tudresden/inf/st/reusablecfg/AlreadyClosedTest.java

...tudresden/inf/st/reusablecfg/NullableDereferenceTest.java