Fixes in the ansible script and tools

[irina556]

1. Remove host interface It remove an interface that was created on the host after starting a node with qemu_dev_start
2. Put the message in ansible to access the cloud nodes By raising a cloud of nodes we were able to access each one by clusterssh. When you wanted to do it with ssh, it was not possible because there was a problem with the keys, so a message is added indicating how you can access any cloud node through ssh.
3. Add "files" in ansible with the images
4. Port change When I wanted to launch a node with internet access using --enable-wan for qemu_dev_start, a port collision occurred as dnsmasq uses port 53 by default, which is usually occupied by the systemd-resolved service. To fix this, another port is allocated so that this collision does not occur.
5. Change ifconfig to IP In the linux_bridge.py module, there were calls to ifconfig, and since modern Linux distributions don't have this command to view the TCP/IP configuration, it wasn't possible to run the node cloud (unless you installed the net- tools for the use of ifconfig). To avoid this inconvenience for any other user, calls that were previously made with ifconfig are now made with IP.

[germanferrero]

Please do remove librerouteros files from the commit history