Motoko Base Library Changes

[rvanasa]

New forum topic for core:

Announcing `core`, the new Motoko standard library!

Hello Motoko devs! As you might have already heard, the Languages team overhauled the Motoko standard library (originally named base) to make it simpler for both humans and AI to understand and write Motoko programs. Relevant links GitHub repository Mops package Documentation Migration guide from base to core Summary of changes New imperative and functional data structures. Reworked existing data structures for storing directly in stable memory. Simplified and included missing type conversi…