Added skeleton for the default github comparer

application/src/request.rs

@@ -89,7 +89,22 @@ JOIN VCSTYPES V ON O.vcs_type = V.vcs_type";
 
 mod versioning {
     trait VersionComparer {
-        fn compare(version: &str);
+        fn compare(v1: &str, v2: &str) -> Comp;
+    }
+
+    pub struct GithubDefaultVersionComparer;
+
+    impl VersionComparer for GithubDefaultVersionComparer {
+        fn compare(v1: &str, v2: &str) -> Comp {
+            todo!()
+        }
+    }
+
+    // todo: rename this
+    pub enum Comp {
+        Left,
+        Right,
+        Equal,
     }
 }