Adding params support for sendMessage (#366)

* Adding params support for sendMessage

* Add sendMessage to Call

* Add body to options if key is not setted

* Fix error message on sendMessage method

* Upgrading intl dependency

---------

Co-authored-by: EduardoAlberti <eduardo.alberti.d@gmail.com>

Author: FeleConvo

lib/src/message.dart

@@ -32,7 +32,8 @@ class Message extends EventManager with Applicant {
 
   Map<String, dynamic>? get data => _data;
 
-  void send(String target, String body, [Map<String, dynamic>? options]) {
+  void send(String target, String body,
+      [Map<String, dynamic>? options, Map<String, dynamic>? params]) {
     String originalTarget = target;
     options = options ?? <String, dynamic>{};
 
@@ -56,8 +57,8 @@ class Message extends EventManager with Applicant {
 
     extraHeaders.add('Content-Type: $contentType');
 
-    _request =
-        OutgoingRequest(SipMethod.MESSAGE, normalized, _ua, null, extraHeaders);
+    _request = OutgoingRequest(
+        SipMethod.MESSAGE, normalized, _ua, params, extraHeaders);
     if (body != null) {
       _request.body = body;
     }

lib/src/sip_ua_helper.dart

@@ -345,8 +345,8 @@ class SIPUAHelper extends EventManager {
   }
 
   Message sendMessage(String target, String body,
-      [Map<String, dynamic>? options]) {
-    return _ua!.sendMessage(target, body, options);
+      [Map<String, dynamic>? options, Map<String, dynamic>? params]) {
+    return _ua!.sendMessage(target, body, options, params);
   }
 
   void subscribe(String target, String event, String contentType) {

lib/src/ua.dart

@@ -195,7 +195,7 @@ class UA extends EventManager {
     _registrator.unregister(all);
   }
 
-  /** 
+  /**
    * Create subscriber instance
    */
   Subscriber subscribe(
@@ -261,11 +261,11 @@ class UA extends EventManager {
    * -throws {TypeError}
    *
    */
-  Message sendMessage(
-      String target, String body, Map<String, dynamic>? options) {
+  Message sendMessage(String target, String body, Map<String, dynamic>? options,
+      Map<String, dynamic>? params) {
     logger.d('sendMessage()');
     Message message = Message(this);
-    message.send(target, body, options);
+    message.send(target, body, options, params);
     return message;
   }
 
@@ -897,9 +897,9 @@ class UA extends EventManager {
     return;
   }
 
-/**
- * Transport event handlers
- */
+  /**
+   * Transport event handlers
+   */
 
 // Transport connecting event.
   void onTransportConnecting(WebSocketInterface? socket, int? attempts) {