Problems sending a email to alternative email address

When the option to send an email to an alternative email is used in civirules, but the trigger reference contact does not have an email address or has it blocked, the email is not sent.

This issue arises from the following change: b28aa8b3

The problem is complex, because the "alternative_receiver_address" parameter is used in different situations:

• When a different location type is defined (in this case, you must verify that the contact is not blocked from receiving emails).
• When an alternative email address is defined (it should not be verified if the reference contact has blocked emails).

I suggest separating these situations with another parameter: !61 (merged)