_id is always 1

Signed-off-by: Tomas Neme <lacrymology@gmail.com>
make CaspaDriver into an EventEmitter

Signed-off-by: Tomas Neme <lacrymology@gmail.com>
Prepare to send 'ready' message when all setup is done

Signed-off-by: Tomas Neme <lacrymology@gmail.com>
set up status collection

Signed-off-by: Tomas Neme <lacrymology@gmail.com>