Register LSP server settings.

def register_lsp_server_settings(self, settings, language):
        """Register LSP server settings."""
        self.lsp_editor_settings[language] = settings
        logger.debug('LSP server settings for {!s} are: {!r}'.format(
            language, settings))
        self.lsp_server_ready(language, self.lsp_editor_settings[language])