Replace "we" with "papiNet" in paper-board-pulp-warehouse-inventory-changes.md

[larsolofsson]

Replace "For now, we only consider" with "For now, papNet only considers"
Replace "We suggest that the supplier" with "pqapiNet suggests that the supplier"
Replace "that's why we recommend" with "that's why papiNet recommends"
Replace "we recommend to use the" with "papiNet recommends to use the"
Replace "we will use the CloudEvents" with "papiNet will use the CloudEvents"
Replace "we recommend to secure the access" with "papiNet recommends to secure the access"