add simple loop bench

fiddled with run numbers a bit
recording times with noop removed
results slightly worse than hoped

test/bench/ruby/adds.rb

@@ -11,9 +11,9 @@ def fibo( n)
 	return result
 end
 
- counter = 100000
+ counter = 50000
 
 while(counter > 0) do
-	fibo(20)
+	fibo(40)
   counter -= 1
 end