Media recording changes (#31)

* [WIP] Add MediaRecorder for iOS and OSX

Don't merge yet! Work in progress.
PR will be ready soon.

* Add rotation parameter and changeVideoTrack

Those will be implemented soon

* add album name

* update albumName

* review changes

---------

Co-authored-by: Dima Rostopira <[email protected]>

Author: daniel-g-favoreto-opl

lib/src/media_recorder.dart

@@ -3,8 +3,9 @@ import 'media_stream.dart';
 import 'media_stream_track.dart';
 
 abstract class MediaRecorder {
-  /// For Android use audioChannel param
-  /// For iOS use audioTrack
+  /// Starts recording to file at [path].
+  /// Optionally, on Android choose [audioChannel] to record.
+  /// On web platform use [startWeb] instead.
   Future<void> start(
     String path, {
     MediaStreamTrack? videoTrack,
@@ -19,5 +20,5 @@ abstract class MediaRecorder {
     int timeSlice = 1000,
   });
 
-  Future<dynamic> stop();
+  Future<dynamic> stop({String? albumName});
 }