feat: Designated caller asset contract/portal

[LHerskind]

Extend the asset portals with designated callers as referenced in #843.

Designated caller is a standard that portals can decide to use that strive to make composability of L2 -> L1 easier to implement.

In short, a successful implementation should include:

• Extended portal contract (and noir) that support withdraw with or without designated caller
• Extra test that:
  • Show that without designated anyone can call
  • With designated only the designated can call