Individual SNMP trap enabling

[deligatedgeek]

Added a template for trigger.conf and 4 new parameters for freeradius class

• $snmp_traps_enable - Whether to actual trap and not just echo commands
• $snmp_traps_community - The SNMP community string/shared secret of the trap destination
• $snmp_traps_dest - The IP address of the trap destination
• $snmp_traps - And array of trap names, if empty it is populated with all trap names, if a list of traps is supplied then those are enabled.

There are no dependencies between parameters to allow full configuration of file and checking before enabling traps

[deligatedgeek]

@nward A clean start on the trigger.conf trap configuration.
Not sure why this is failing tests, but the code does work when testing in my environment

[deligatedgeek]

Does anyone why know why checks which are seeming unrelated to my changes are failing, I forked the last commit that passed so I don't know what's going on.

[deligatedgeek]

Resolves #187

[djjudas21]

The tests are also failing in the same way on the latest commit in main, so this isn't you, this is the tests. Looks like some incorrectly specified test data.

Are you happy that this change is complete, and working?

[deligatedgeek]

@djjudas21 Im happy this is completed and working.

[djjudas21]

I've hada quick look, and I'm happy to merge if you can add some basic documentation to README.md to include the new parameters, the expected values, etc. Thanks.

@nward is there anything you want to add before we merge?