Refactor TelegramApi module

submodules/TelegramApi/Sources/TelegramApiLogger.swift

@@ -0,0 +1,11 @@
+import Foundation
+
+private var telegramApiLogger: (String) -> Void = { _ in }
+
+public func setTelegramApiLogger(_ f: @escaping (String) -> Void) {
+    telegramApiLogger = f
+}
+
+func telegramApiLog(_ what: @autoclosure () -> String) {
+    telegramApiLogger(what())
+}