Client resolve daemon port dynamically

[radumarias]

App details rencfs_desktop_common/src/app_details.rs build similar to https://github.com/radumarias/rencfs_desktop/blob/16b6928e6fc12de2e4d0eefb85afbdc29bbd2d01/rencfs_desktop_common/src/directories.rs#L10

When server starts we create a yaml file (as below) in /etc/app_id/discovery.yaml (as above) with 644 perm and save the IP and port and client gets it from there.

/etc/app_id/discovery.yaml

ip: IP
port: PORT