Added properties module

src/lib.rs

@@ -1,2 +1,3 @@
 pub mod meta;
+pub mod properties;
 pub mod types;

src/properties.rs

@@ -0,0 +1,9 @@
+
+#[derive(Debug, Default, Clone)]
+pub struct Duration {
+    pub val: i32
+}
+
+pub fn get_duration(song_path: &String) -> Duration {
+    Duration::default()
+}