new status to the contact new vs. existing members

[tttp]

for some campaigns, we do a lookup to check if the email of the supporter is already known (= already in the CRM of the organisation and with a gdpr consent given)

if that case, we do not skip a "normal" email to ask if the supporter want to opt-in or not, but only to confirm the action.

we do not distinguish the signatures between:

• the supporter was already a member and signed
• the supporter is a new member that signed

this is especially important to be able to measure if a campaign (or a specific promoting action) is successful because it (re)activates existing supporters vs reaching to a new audience.

@1v4n4 can you see with @destag and show him for LC?