[Enhancement] Suggest to send complete msg info for openhab2-out node

[lsafelix75]

Hi,

Just a suggestion to include a complete msg object that include itemname for
77-openhab2.js line 482 to the following. The main reason i suggest this is because we can use subsequent nodes to verify the intended status for a configured item on openhab2-out. Thanks.

msg.item = item; node.send(msg);
instead of
node.send(msg)