Template matching benchmarks all use the same hardcoded method

[sby1ce]

The macro that generates the benchmarks for template matching ignores the method parameter and uses hardcoded SQDIFF.

imageproc/src/template_matching.rs

Lines 853 to 866 in ab9e19c

	macro_rules! bench_match_template {
	($name:ident, image_size: $s:expr, template_size: $t:expr, method: $m:expr) => {
	#[bench]
	fn $name(b: &mut Bencher) {
	let image = gray_bench_image($s, $s);
	let template = gray_bench_image($t, $t);
	b.iter(|| {
	let result =
	match_template(&image, &template, MatchTemplateMethod::SumOfSquaredErrors);
	black_box(result);
	})
	}
	};
	}

Also cross correlation is not benchmarked at all.

Perhaps I'm misunderstanding how the macro works or what's the benchmarking process for this crate...