Support list.map(), list.foreach(), etc

[skiars]

JavaScript and python have similar APIs, maybe we can consider it? This should be simple.

[s-hadinger]

They would be simple indeed, even in plain Berry code. However I'm not convinced they would be so useful in the core language. Functional programming in not so intuitive to the regular Berry developer. Said differently, I didn't use such functions in Tasmota.

The one thing that would be awesome if "list comprehension" like in Python. But I'm afraid it's a massive change to the Berry compiler, and maybe not worth it.