move benchmark into benches folder

benches/bench.rs

@@ -0,0 +1,30 @@
+#![feature(test)]
+
+extern crate test;
+
+mod benches {
+    use bsp::Bsp;
+    use test::Bencher;
+
+    const MAP_BYTES: &[u8] = include_bytes!("../test.bsp");
+
+    #[bench]
+    fn from_bytes(b: &mut Bencher) {
+        use std::io::Cursor;
+
+        b.iter(|| {
+            Bsp::read(&mut Cursor::new(MAP_BYTES)).unwrap();
+        });
+    }
+
+    #[bench]
+    fn leaf_at(b: &mut Bencher) {
+        use std::io::Cursor;
+
+        let bsp = Bsp::read(&mut Cursor::new(MAP_BYTES)).unwrap();
+
+        b.iter(|| {
+            test::black_box(bsp.leaf_at(test::black_box([0., 0., 0.])));
+        });
+    }
+}