WIP: Still nothing meaningful

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

lib/src/project.rs

@@ -1,7 +1,9 @@
-use crate::{region::Region, track::Track};
+use crate::{metadata::Metadata, region::Region, track::Track};
 
-pub(crate) struct Project {
-    name: String,
-    tracks: Vec<Track>,
-    regions: Vec<Region>,
+pub struct Project {
+    pub name: String,
+    pub tracks: Option<Vec<Track>>,
+    pub regions: Option<Vec<Region>>,
+    // Current playhead position
+    pub current_sample: u64,
 }