WIP: rspamd whitelisting and rule priorities

install/lib/installer_base.lib.php

install/tpl/dkim_whitelist.inc.master

install/tpl/dmarc_whitelist.inc.master

install/tpl/rspamd_antivirus_group.conf.master

install/tpl/rspamd_rbl_group.conf.master

install/tpl/rspamd_surbl_group.conf.master

install/tpl/rspamd_users.inc.conf.master

install/tpl/rspamd_whitelist.conf.master

install/tpl/spf_dkim_whitelist.inc.master

install/tpl/spf_whitelist.inc.master

server/conf/rspamd_users.conf.master