SolarWinds Knowledge Base :: Applying a LEM Connector Update Package is where you can download the latest.
Data Sources - Log Management & Log Analyzer Software | SolarWinds is where you can see supported data sources, but this list is not as current as the actual connector package itself.
In the package, I see:
F5BigIPLTMgeneral.xml
F5BigIPdaemon.xml
F5BigIPhttpd.xml
F5BigIPmessages.xml
I think you'll get the generic stuff through the BigIP connectors, but not necessarily the WAF stuff. Best to ping.