WIP: Still nothing meaningful

Signed-off-by: Nikolai Rodionov <allanger@badhouseplants.net>

lib/src/track.rs

@@ -1,15 +1,14 @@
 use crate::metadata::Metadata;
 
-use super::region::Region;
-
-pub(crate) enum TrackType {
+pub enum TrackType {
     Audio,
     Midi,
 }
 
-pub(crate) struct Track {
-    metadata: Metadata,
-    track_type: TrackType,
+pub struct Track {
+    pub metadata: Metadata,
+    pub track_type: TrackType,
+    pub active: bool,
 }
 
-pub(crate) struct TrackStatus {}
+pub struct TrackStatus {}