[EDH-3057] Metering point change DDs are incorrect in case of future agreements

[mailimarkvardt]

Problem
DD spec states that different parties should be informed about metering point metadata changes in case of ACTIVE and FUTURE agreements. At the moment there's no difference - also in case of FUTURE agreements DDs are generated as the agreements were ACTIVE.
This concerns REGULAR, BORDER and AGG metering points.

Steps to reproduce

Find or create a border metering point where customer is some other market participant.

1. add FUTURE border grid to customer
2. Change MP metadata such as resolution, save

Expected result
DDs are generated:

1. Only for CUSTOMER

Actual Result

1. DDs are generated for MP owner PP and customer PP (- these messages should NOT have been generated in case of future agreement

2. DD was not generated for the customer

Additional information:

Since this issue concerns all types of agreements that can start in the future, all of them are affected by this issue. Need to test also with GS/GRID/SUPPLY and AGG agreements.