(captiveportal, new) add rc enable/disable config template

src/opnsense/service/templates/OPNsense/Captiveportal/+TARGETS

-#rc.conf.d:/etc/rc.conf.d/captiveportal
+rc.conf.d:/etc/rc.conf.d/captiveportal
 captiveportal.conf:/usr/local/etc/captiveportal.conf
 lighttpd-api-dispatcher.conf:/var/etc/lighttpd-api-dispatcher.conf
 lighttpd-zone.conf:/var/etc/lighttpd-cp-zone-[OPNsense.captiveportal.zones.zone.%.zoneid].conf

src/opnsense/service/templates/OPNsense/Captiveportal/rc.conf.d

+{% set isEnabled=[] %}
+{% if helpers.exists('OPNsense.captiveportal.zones.zone') %}
+{%   for cpZone in  helpers.toList('OPNsense.captiveportal.zones.zone') %}
+{%     if cpZone.enabled|default('0') == '1' %}
+{%	do isEnabled.append(cpZone) %}
+{%     endif %}
+{%   endfor %}
+{% endif 
+%}
+captiveportal_enable="{% if isEnabled %}YES{% else %}NO{% endif %}"