[EPOCH TRANSITION] - Form an eQC at the end of an epoch

[lukaszrzasik]

What is this task and why do we need to work on it?

An Extended Quorum Certificate should be formed at the end of the epoch. These changes do not require a quorum of nodes in the next epoch. This can be omitted and implemented in another change. These changes should focus on behaviour of nodes in the current epoch, i.e. forming three consecutive certificates in three consecutive views for the last block in the epoch.

Details of the algorithm can be found here: https://www.notion.so/espressosys/Node-perspective-stories-1122431b68e98045a944ff4f148b1101

What work will need to be done to complete this task?

No response

Are there any other details to include?

No response

What are the acceptance criteria to close this issue?

The nodes in the current epoch can successfully form an Extended Quorum Certificate.

Branch work will be merged to (if not the default branch)

No response