tweak N for ArrayBenchmark to show reusing of engine

Jint.Benchmark/ArrayBenchmark.cs

@@ -18,7 +18,7 @@ namespace Jint.Benchmark
 
         protected override string Script => "var ret=[],tmp,num=500,i=1024;for(var j1=0;j1<i*15;j1++){ret=[];ret.length=i}for(var j2=0;j2<i*10;j2++){ret=new Array(i)}ret=[];for(var j3=0;j3<i;j3++){ret.unshift(j3)}ret=[];for(var j4=0;j4<i;j4++){ret.splice(0,0,j4)}var a=ret.slice();for(var j5=0;j5<i;j5++){tmp=a.shift()}var b=ret.slice();for(var j6=0;j6<i;j6++){tmp=b.splice(0,1)}ret=[];for(var j7=0;j7<i*25;j7++){ret.push(j7)}var c=ret.slice();for(var j8=0;j8<i*25;j8++){tmp=c.pop()}var done = true;";
 
-        [Params(1)]
+        [Params(5)]
         public override int N { get; set; }
     }
 }

Jint.Benchmark/SingleScriptBenchmark.cs

@@ -13,7 +13,7 @@ namespace Jint.Benchmark
 
         protected abstract string Script { get; }
 
-        [Params(1)]
+        [Params(10)]
         public virtual int N { get; set; }
 
         [Params(true, false)]