Checkmk Werk 11772: Bring back Agent/SNMP info in `cmk --list-checks`

ID: 11772 Title: Bring back Agent/SNMP info in `cmk --list-checks` Component: Checks & agents Level: 1 Class: New feature Version: 2.1.0i1 The in Checkmk versions 2.0.0i1 and 2.0.0b1 the TCP/SNMP information had been dropped from the output of <tt>cmk --list-checks</tt>. This was due to the fact that check plugins are now neither purely one or the other. We now write "agent" if the check plugin requires an agent data source (e.g. the regular Checkmk linux agent), "snmp" if it reguires an SNMP data source, and "agent/snmp" if it can be discovered with either of the data source types.