Change command line flags used to the start language server

[cmaglie]

we should remove the flags:

• -cli /path/to/atduino-cli
• -cli-config /path/to/cli-config.yml

and replace them with:

• -cli-daemon-addr localhost:50051
• -cli-daemon-instance 1 (where 1 is the "Instance" value of the gRPC instance you're using in the IDE)

I need this change for the next release of the language server.

[per1234]

Resolved by #610