feat(auth): API keys

implements:
https://github.com/meilisearch/specifications/blob/develop/text/0085-api-keys.md

- Add tests on API keys management route (meilisearch-http/tests/auth/api_keys.rs)
- Add tests checking authorizations on each meilisearch routes (meilisearch-http/tests/auth/authorization.rs)
- Implement API keys management routes (meilisearch-http/src/routes/api_key.rs)
- Create module to manage API keys and authorizations (meilisearch-auth)
- Reimplement GuardedData to extend authorizations (meilisearch-http/src/extractors/authentication/mod.rs)
- Change X-MEILI-API-KEY by Authorization Bearer (meilisearch-http/src/extractors/authentication/mod.rs)
- Change meilisearch routes to fit to the new authorization feature (meilisearch-http/src/routes/)

- close #1867

meilisearch-http/tests/auth/mod.rs

@@ -0,0 +1,71 @@
+mod api_keys;
+mod authorization;
+mod payload;
+
+use crate::common::server::default_settings;
+use crate::common::server::TEST_TEMP_DIR;
+use crate::common::Server;
+use actix_web::http::StatusCode;
+use serde_json::{json, Value};
+use tempfile::TempDir;
+
+impl Server {
+    pub async fn new_auth() -> Self {
+        let dir = TempDir::new().unwrap();
+
+        if cfg!(windows) {
+            std::env::set_var("TMP", TEST_TEMP_DIR.path());
+        } else {
+            std::env::set_var("TMPDIR", TEST_TEMP_DIR.path());
+        }
+
+        let mut options = default_settings(dir.path());
+        options.master_key = Some("MASTER_KEY".to_string());
+
+        Self::new_with_options(options).await
+    }
+
+    pub fn use_api_key(&mut self, api_key: impl AsRef<str>) {
+        self.service.api_key = Some(api_key.as_ref().to_string());
+    }
+
+    pub async fn add_api_key(&self, content: Value) -> (Value, StatusCode) {
+        let url = "/keys";
+        self.service.post(url, content).await
+    }
+
+    pub async fn get_api_key(&self, key: impl AsRef<str>) -> (Value, StatusCode) {
+        let url = format!("/keys/{}", key.as_ref());
+        self.service.get(url).await
+    }
+
+    pub async fn patch_api_key(&self, key: impl AsRef<str>, content: Value) -> (Value, StatusCode) {
+        let url = format!("/keys/{}", key.as_ref());
+        self.service.patch(url, content).await
+    }
+
+    pub async fn list_api_keys(&self) -> (Value, StatusCode) {
+        let url = "/keys";
+        self.service.get(url).await
+    }
+
+    pub async fn delete_api_key(&self, key: impl AsRef<str>) -> (Value, StatusCode) {
+        let url = format!("/keys/{}", key.as_ref());
+        self.service.delete(url).await
+    }
+
+    pub async fn dummy_request(
+        &self,
+        method: impl AsRef<str>,
+        url: impl AsRef<str>,
+    ) -> (Value, StatusCode) {
+        match method.as_ref() {
+            "POST" => self.service.post(url, json!({})).await,
+            "PUT" => self.service.put(url, json!({})).await,
+            "PATCH" => self.service.patch(url, json!({})).await,
+            "GET" => self.service.get(url).await,
+            "DELETE" => self.service.delete(url).await,
+            _ => unreachable!(),
+        }
+    }
+}