RFE: Add ARC testing to DKIM plugin

[Benny Pedersen]

i like to see ARC testing in Mail::DKIM used in spamassassin DKiM 
plugin, its imho not much code changes to make that work, if DKIM plugin 
do this it would be possible to add it to AuthRes aswell, and maybe 
finaly do DMARC test in spamassassin, but this last step do require 
AuthRes is done aswell

would a ticket do for tracking work in progress on this ?

i dont like to delay spamassassin 4.0.0, just hope to see less behind 
with spamassassin