OAuth 2.0 Authorization Server [MOD-559] (#733)

* WIP end-of-day push

* Authorize endpoint, accept endpoints, DB stuff for oauth clients, their redirects, and client authorizations

* OAuth Client create route

* Get user clients

* Client delete

* Edit oauth client

* Include redirects in edit client route

* Database stuff for tokens

* Reorg oauth stuff out of auth/flows and into its own module

* Impl OAuth get access token endpoint

* Accept oauth access tokens as auth and update through AuthQueue

* User OAuth authorization management routes

* Forgot to actually add the routes lol

* Bit o cleanup

* Happy path test for OAuth and minor fixes for things it found

* Add dummy data oauth client (and detect/handle dummy data version changes)

* More tests

* Another test

* More tests and reject endpoint

* Test oauth client and authorization management routes

* cargo sqlx prepare

* dead code warning

* Auto clippy fixes

* Uri refactoring

* minor name improvement

* Don't compile-time check the test sqlx queries

* Trying to fix db concurrency problem to get tests to pass

* Try fix from test PR

* Fixes for updated sqlx

* Prevent restricted scopes from being requested or issued

* Get OAuth client(s)

* Remove joined oauth client info from authorization returns

* Add default conversion to OAuthError::error so we can use ?

* Rework routes

* Consolidate scopes into SESSION_ACCESS

* Cargo sqlx prepare

* Parse to OAuthClientId automatically through serde and actix

* Cargo clippy

* Remove validation requiring 1 redirect URI on oauth client creation

* Use serde(flatten) on OAuthClientCreationResult

tests/common/api_v3/mod.rs

@@ -0,0 +1,19 @@
+#![allow(dead_code)]
+
+use super::environment::LocalService;
+use actix_web::dev::ServiceResponse;
+use std::rc::Rc;
+
+pub mod oauth;
+pub mod oauth_clients;
+
+#[derive(Clone)]
+pub struct ApiV3 {
+    pub test_app: Rc<dyn LocalService>,
+}
+
+impl ApiV3 {
+    pub async fn call(&self, req: actix_http::Request) -> ServiceResponse {
+        self.test_app.call(req).await.unwrap()
+    }
+}