Perses finale (#558)

* Move v2 routes to v2 module

* Remove v1 routes and make it run

* Make config declaration consistent, add v3 module

* Readd API v1 msgs

* Fix imports

src/routes/v2/mod.rs

@@ -0,0 +1,38 @@
+mod admin;
+mod auth;
+mod midas;
+mod moderation;
+mod notifications;
+pub(crate) mod project_creation;
+mod projects;
+mod reports;
+mod statistics;
+mod tags;
+mod teams;
+mod users;
+mod version_creation;
+mod version_file;
+mod versions;
+
+pub use super::ApiError;
+
+pub fn config(cfg: &mut actix_web::web::ServiceConfig) {
+    cfg.service(
+        actix_web::web::scope("v2")
+            .configure(admin::config)
+            .configure(auth::config)
+            .configure(midas::config)
+            .configure(moderation::config)
+            .configure(notifications::config)
+            .configure(project_creation::config)
+            .configure(projects::config)
+            .configure(reports::config)
+            .configure(statistics::config)
+            .configure(tags::config)
+            .configure(teams::config)
+            .configure(users::config)
+            .configure(version_creation::config)
+            .configure(version_file::config)
+            .configure(versions::config),
+    );
+}