Update message and few issue fix up

Reintroduced update message from PZH to PZP about connected devices information including friendlyName.
PZP WebSocket server replaces every message message header with friendlyName.

Jira Issue: WP-263
PZP websocket and client side pzhid handling

Corrected Pzhid handling on the client side

Jira Issue: WP-263
PZP sending friendlyname and key to the PZH at time of reconnect

Jira Issue: WP-263
Changed app2app instance peer id generation

Jira issue: WP-263