SootUpify testframework

[swissiety]

• reintroduce sparsification - generalize? so its not just in soot? improve cache perfromance -> use key objects vs string concatenation
• reuse framework setups /callgraph etc. across testcases to save execution time?
• sootup: refctor SootUpFrameworkScope.getInstance() hack away to enable independent/concurrent boomerang instances
• create Parameterized tests / if possible: frameworks are selected by maven profiles?
• create scope objects lazily e.g. CallGraph is currently copied into the scope structure - maybe calls could be forwarded when needed - but then the original object cannot be garbage collected and will stay in memory (check if it is currently gc'ed)