Additional ruleset/s

[kitenetter]

@robin-hutchinson Sam has just pointed out that there are rules in the Indicia warehouse for fungi:
https://warehouse1.indicia.org.uk/index.php/verification_rule/edit/27942

I can't see those rules in the set of csv files. As far as I can tell BMS have only defined ID difficulty, and do not have rules for distribution nor phenology. But it might be worth doing a cross-check with the rules in the warehouse to see if there are any others that we have missed.