* add: Message.forward(id) forward message

You can directly forward files and multimedia, but limit the file size to 25Mb or less, otherwise it will fail because the server policy.

* fix(forward): parameter support Room/Contact/roomId/ContactId

* fix(message): fix some attributes not exist in the WebWxApp structure

* fix(message): fix forward return Promise<boolean>

In addition, some notes are added.

* fix(message) remove suppot forward(id : string)

* fix(message): add a prompt for file size in forward()

* fix(message): add the code to check if rawObj  is undefined

* fix(message): fix msg content error of forward group message

fix: When forwarding a message within a group, the content is prefixed with @userId.

* add(message): Add the Forward Message Source Settings option

```
m.forward(Room.load(id), { user: '$USER', room: 'Room[$ROOM]', custom: 'forward from $ROOM$USER' })

// source message: 'test msg'
// from room: 'testRoom'
// from user: 'Bot'
// forward message: `forward from Room[testRoom]Bot:\ntest msg`
```

* fix(message): only MsgType is TEXT, add forward from info

* fix(bridge): fix only emoji can't forward

* changge(message): move forward()  from class Message to MediaMessage

* fix(message): fix the error of forward room video

In room msg, the content prefix sender:, need to be removed, otherwise the forwarded sender will display the source message sender, causing self () to determine the error

* fix(message): add '{' and '}'

* doc(message): Supplementary forward() of jsdoc comments

resolved #726

* fix(message): fix the comment for forward()