Add basic analysis to generate heatmap

analysis/tests/heatmap.rs

@@ -0,0 +1,22 @@
+use analysis::heatmap;
+use tracing_test::traced_test;
+
+#[test]
+#[traced_test]
+fn heatmap_nuke() {
+    let path = concat!(env!("CARGO_MANIFEST_DIR"), "/../testfiles/nuke.dem");
+    dbg!(path);
+    let input_bytes = std::fs::read(path).unwrap();
+
+    let config = heatmap::Config { cell_size: 25.0 };
+    let result = heatmap::parse(&config, &input_bytes).unwrap();
+
+    for (user, mut heatmap) in result {
+        heatmap.shrink();
+
+        let image = heatmap.as_image();
+        image.save_with_format(format!("./heatmap_nuke-{}.png", user.0), image::ImageFormat::Png).unwrap();
+    }
+
+    todo!()
+}