refactoring: consistency between regular and with_errors column builders

[lukapeschke]

with_errors Python impls still take an offset and a limit (example), whereas regular loaders take an iterator.

This should be adressed before v1.0.0 to ensure we have a consistent option management for all impls (py-noerrors, py-errors and rust).

Rust still takes offset+limit as well: https://github.com/ToucanToco/fastexcel/blob/main/src/data/rust.rs#L6-L11