get_sw_ver_info() gets version info from Internet even if asked not to show any

[afaerber]

In system_utils.py the function get_sw_ver_info has an argument show_sw_ver, but it is only checked after looping to obtain the later unused versions from the Internet.

This should probably be reordered so that it returns early:

if not show_sw_ver:
    return sw_ver
version = {}
...
return version

BTW is the TODO "Implement call to server to pull latest SW versions" at the very top a leftover, given the implemented JSON retrieval from the server? Or is that about an improvement thereof, given that Buda and Metallium versions are being overwritten with hardcoded versions?