Add support for websocket client

[zdila]

It would be really cool for the extension to also support websockets. If it is out of scope then it may serve as an idea for new extension ;-).

[Huachao]

@zdila It's a bit of out of scope, I'd like to put it in backlog. Thanks for your suggestion.

[zydxhs]

It would be really cool for the extension to also support websockets. Hopefully it will be supported in a later release.

[jeffreyschultz]

I would also like to vote for websocket support in this extension, or the creation of another. I really like how I can drop an .http file into the project right alongside the controller and provide quick access to related rest calls. That would be amazing for websockets as well.

[mepsoid]

I'd like to vote up for websockets support too.

[alersrt]

Agreed and disagreed with previous comments. Developing with websockets is not such rare case to keep eyes closed on. From the other side it can be complicate enough to design it for proper using. So for example I don't see the proper way to implement it and use in http files restclient was designed for from the start.

[PolyphonyRequiem]

I'd love websocket support as well

[tkachukcha]

I'd like support of websockets too!

[haxung]

I'd like support of websockets too!