Integrate taintbench

[Jclavo]

The benchmark "TaintBench" was integrated [https://taintbench.github.io/] and based on TaintBench Paper, we have run two experiments.

Experiment 1

• Configuration: All tests are configured with sources and sinks defined in benchmark suite.
• Result: We got an slightly better metrics than FLOWDROID.

Experiment 2

• Configuration: Each test is run with its associated list of sources and sinks
• Result: We found more True Positives than FLOWDROID; however our precision metric is low due to the amount of False Positive that also we found.