vscode_erlang add support for language server

The actual server will be hosted elsewhere (erlide), we have to see how we can package the required beam files here.

Feb 20 '17 15:02 vladdu

@pgourlain I see you got a LSP implementation. I have a LSP server implemented at https://github.com/erlang/sourcer, which I hope to have ready soon. The vscode extension supporting it is at https://github.com/vladdu/vscode-erlang-lsp. Maybe it would be most useful to only have one implementation? You are also supporting the debug protocol, which I don't. I have support for most LSP requests.

Mar 05 '18 07:03 vladdu

Thanks for your feed back, I did not see it. I m going to take a look

Mar 07 '18 07:03 pgourlain

@vladdu, I began to see your implementation, why are you requires at least Erlang V20. Do you use a specific feature that need this version ?

Mar 10 '18 20:03 pgourlain

Mostly, the reason was because I'm lazy. I don't want to need to keep track of compatibility with older releases, and by the time the server is going to be somewhat ready, OTP21 will be out. The server is meant to run in the development environment, where one is not restricted to the Erlang version to use -- so why not use the latest and greatest?

Mar 10 '18 21:03 vladdu