devel/gnatcoll-minimal: New Port, GNAT Components

The GNAT Reusable Components Collection (GNATColl) - Minimal package

A reduced set of components compared to Core specifically aimed
at non-native environments or restricted run-times.

https://docs.adacore.com/live/wave/gnatcoll-core/html/gnatcoll-core_ug/minimal/index.html

PR: 296497