add option to pass extra websocket client arguments

[GingerBear]

TODO:

• Make sure all of the significant new logic is covered by tests
• Rebase your changes on master so that they can be merged easily
• Make sure all tests and linter rules pass
• Update CHANGELOG.md with your change (not sure how to change)

Two of the most used websocket node implementation both support 3rd or more arguments to the constructor. Referring to ws doc and WebSocket-Node doc

This PR try adding an extra property to ClientOptions that can be used to pass extra arguments to the custom ws implementation.

[apollo-cla]

@GingerBear: Thank you for submitting a pull request! Before we can merge it, you'll need to sign the Meteor Contributor Agreement here: https://contribute.meteor.com/

[chriswiggins]

Ping @GingerBear do you want to sign the contributor agreement please? We need this functionality in our app 👍

[GingerBear]

@chriswiggins I think... I already signed

[hwillson]

Thanks @GingerBear!