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/util/routes.rs

@@ -1,4 +1,4 @@
-use crate::routes::project_creation::CreateError;
+use crate::routes::v2::project_creation::CreateError;
 use crate::routes::ApiError;
 use actix_multipart::Field;
 use actix_web::web::Payload;