Create the closeConnection interface function

Author: backslash-f

Sources/ObservableWebSocketClient/Interface/ObservableWebSocketClient+Connection.swift

@@ -0,0 +1,22 @@
+//
+//  ObservableWebSocketClient+Connection.swift
+//  
+//
+//  Created by Fernando Fernandes on 18.04.24.
+//
+
+import Foundation
+
+public extension ObservableWebSocketClient {
+    
+    /// Sends a close frame with an optional close reason.
+    ///
+    /// - Parameter closeCode: A `URLSessionWebSocketTask.CloseCode`
+    /// that indicates the reason for closing the connection. The default is `.normalClosure`.
+    /// - Parameter reason: Optional further information to explain the closing.
+    /// The value of this parameter is defined by the endpoints, not by the standard.
+    func closeConnection(with closeCode: URLSessionWebSocketTask.CloseCode = .normalClosure,
+                         reason: String? = nil) {
+        service.close(reason: reason)
+    }
+}