Move kraken,scheme,python,cpp fib tests over to koka_bench, add WAVM as a tested compiler backend for the Kraken benchmarks

koka_bench/python/python-fib.py

@@ -0,0 +1,11 @@
+#!/usr/bin/env python3
+
+import sys
+def fib(n):
+    if n == 0:
+        return 1
+    elif n == 1:
+        return 1
+    else:
+        return fib(n-1) + fib(n-2)
+print(fib(int(sys.argv[1])))