Cannot use random RTE from desk

[macpijan]

It would be useful to be able to use this script also ad-hoc, using any RTE, not only for devices in lab.

Currently it looks like this:

osfv_cli rte --rte_ip 192.168.4.64 --model 'MinnowBoard Turbot B41' flash probe  
No asset found with RTE IP: 192.168.4.64
DUT model retrieved from cmdline, skipping Snipe-IT query
Using rte command is invasive action, checking first if the device is not used...
Error checking out asset None
Response data: None
Exiting to avoid conflict. Check who is working on this device and contact them first.

[WiktorG351]

@macpijan i added a pr which introduces "ad-hoc-mode". My idea is, if the user runs the tool with --adhoc argument, the script will bypass Snipe-IT checks and allow operations on any RTE, even if it is not registered in the lab.