Script to convert json benchmarks to csv

Add a script which takes the output of the benchmark_java_project.js
script (in json) and format it as a csv file.

scripts/benchmark/benchmark_to_spreadsheet.js

@@ -0,0 +1,23 @@
+#!/usr/bin/env node
+let program = require('commander');
+
+program
+    .arguments('<jsonFile>')
+    .action(function (jsonFile) {
+        let lineReader = require('readline').createInterface({
+            input: require('fs').createReadStream(jsonFile)
+        });
+        console.log("class file; function name; execution time (ms);"
+        + "success; goals covered; total number of goals");
+        lineReader.on('line', function (data) {
+            let json = JSON.parse(data.toString());
+            console.log(
+                json.classFile +";" +
+                json['function'].replace(/;/g, "_") + "; " +
+                json.execTime + ";" +
+                json.success + ";" +
+                ((typeof json.goals != 'undefined')? json.goals.goalsCovered : "0") + ";" +
+                ((typeof json.goals != 'undefined')? json.goals.totalGoals : ""));
+        });
+    })
+    .parse(process.argv);