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

koka_bench/koka/fib.kk

@@ -0,0 +1,13 @@
+module nqueens
+import std/num/int32
+import std/os/env
+
+
+pub fun fib( n : int ) : div int
+  match n
+    0     -> 1
+    1     -> 1
+    x     -> fib(x - 1) + fib(x - 2)
+
+pub fun main()
+  fib(get-args().head("").parse-int.default(30)).println