Add reverse geocoding service (#1085)

* add Geocoding service

* move url session extension

ElementX/Sources/Other/Extensions/MapTiler.swift

@@ -21,3 +21,9 @@ extension MapTilerStyleBuilder {
         self.init(lightURL: appSettings.lightTileMapStyleURL, darkURL: appSettings.darkTileMapStyleURL, key: appSettings.mapTilerApiKey)
     }
 }
+
+extension MapTilerGeoCodingService {
+    init(session: URLSession = .shared, appSettings: AppSettings) {
+        self.init(session: session, key: appSettings.mapTilerApiKey, geocodingURL: appSettings.geocodingURLFormatString)
+    }
+}

ElementX/Sources/Other/Extensions/URLSession.swift

@@ -0,0 +1,28 @@
+//
+// Copyright 2023 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import Foundation
+
+extension URLSession {
+    /// The same as `data(for:delegate:)` but with an additional immediate retry if the first attempt fails.
+    func dataWithRetry(for request: URLRequest, delegate: URLSessionTaskDelegate? = nil) async throws -> (Data, URLResponse) {
+        if let firstTryResult = try? await data(for: request, delegate: delegate) {
+            return firstTryResult
+        }
+        
+        return try await data(for: request, delegate: delegate)
+    }
+}