Create file metadata endpoint

This allows retrieving create/modify date as well as file size for any
file in the BASE_PATH.

src/database/mod.rs

@@ -44,15 +44,12 @@ impl UserDao for SqliteUserDao {
                 .execute(&self.connection)
                 .unwrap();
 
-            match users
+            users
                 .filter(username.eq(username))
                 .load::<User>(&self.connection)
                 .unwrap()
                 .first()
-            {
-                Some(u) => Some(u.clone()),
-                None => None,
-            }
+                .cloned()
         } else {
             None
         }