Add `trusted` query to `incoming-transfers` endpoint

[iamacook]

Description

The incoming-transfers endpoint does not include the trusted query that the history endpoint does.

Web uses the above endpoint when filtering transactions. Without the query, untrusted transactions are shown when filtering.

Requirements

• Add the trusted query to the incoming-transfers route
• Abstract and implement the onlyTrusted filtering to the route

Additional information

There was a request to implement the above on the multisig-transactions and module-transactions endpoints but trusted only affects incoming-transfers.