[Info] Reconciliation of payments with connectors

Problem:
- Different PGs have different construct for accepting payment ID
- Merchants find it difficult to reconcile payments with

Solution:
- Note on integration best practices for simpler reconciliation
- Classify connectors under pattern from a reconciliation perspective. Mention which connectors (i) Accept Payment ID (ii) Auto generate Payment ID (iii) Accept payment ID as meta information. How to reconcile payment for each pattern?
- Create a table with the nomenclature for all top connectors