[Requestor Dashboard] Add the ability to filter invoices on an agreement ID

[cryptobench]

Background

During the recent cooldown sprint I started creating a Yagna artifact dashboard which would give the user the ability to visually browse what's going on with their requestor. This however resulted in the discovery that the REST API is lacking endpoints that are useful for not only this topic alone.

What

In the dashboard we would like to have the ability to display all invoices related to an agreement, but we're missing the filtering ability on the invoices endpoint.

Here's a reference image of what was envisioned

[nieznanysprawiciel]

Probably it would be more beneficial to make filtering based on app-session-id.

[nieznanysprawiciel]

Currently this can be workaround by using Invoice events endpoint and filter by app-session-id.