Fix: Handle more than 2 counters

We can actually handle more than 2 counters! So we make sure we do

core/src/main/kotlin/se/lth/cs/papicounters/PapiTracerRunner.kt

@@ -98,12 +98,12 @@ open class PapiTracerRunner() : PapiRunner() {
             .filter { ! it.isSpecial() } // These are active by default.
             .map { it.toPAPIConstant()!! }
 
-        when (counters.size) {
-            // Only default counters
-            0 -> Tracer.isTracing = true
-            1 -> Tracer.setCounters(counters.first())
-            2 -> Tracer.setCounters(counters[0], counters[1])
-            // Shouldn't happen with more elements
+        Tracer.clearCounters();
+        Tracer.reset()
+        Tracer.isTracing = true
+
+        for (c in counters) {
+            Tracer.addCounter(c)
         }
 
         val rangeIterations = 0 until spec.numberRuns