Provide an API to return a transaction chain in reverse order

[Neylix]

Is your feature request related to a problem?

There is some use case where it is required to get a transaction chain from the newest transaction to the oldest.

Describe the solution you'd like

Since this PR #773 there is a DB function to get the transaction chain in reverse order, using pagination.
We could add a new flag order in the transactionChain query of graphql to return the transaction chain in asc or desc order

Additional context

No response