libsinsp currently only supports string and unsigned 64-bit integer
field types. For string fields that might contain a parseable address,
add ".v4" and ".v6" subtree items with a corresponding field type.
For example, the ct.srcip field now dissects as
Sysdig Event 1: 880 bytes
Falco Bridge
cloudtrail Plugin
[ ... ]
Source IP: 3.92.225.50
[Source IP (IPv4): 3.92.225.50]
The Sysdig Bridge plugin loads Falco plugins, so rename it to Falco
Bridge.
Make it optional and dependent on libsinsp+libscap, similar to our codec
plugins.
Remove some unused code.