switched from raw lambda to stepable

couldn't figure out how to handle sortstate, eventually put it into
bsort class. should be split into timeraction and steppable. and there
shouldn't be a random steppedbsort in App

src/sorters.cpp

@@ -0,0 +1,29 @@
+#include <cstdio>
+#include <utility>
+#include "sorters.hpp"
+using namespace std;
+
+
+SteppedBsort::SteppedBsort(SortInput &input): data(input) {};
+
+bool SteppedBsort:: step(){
+	if(is_finished==true) {
+		printf("finished");
+		return true;
+			}
+	if(data.values[j]>data.values[j+1])
+		{
+			swap(data.values[j], data.values[j+1]);
+		}
+	j++;
+	if(j>=data.values.size()-1 -i){
+		j=0;
+		i++;
+	}
+
+	if (i==data.values.size()-1){
+		is_finished=true;
+	}
+	
+	return false;
+}