Refactor passed atomic data boxes check

[BrianMarre]

extract the check of the passed bound-free atomic data boxes to avoid code duplication

This is done in preparation for the implementation of the instant field ionization transitions.

• [x] requires PR #5207 to be merged first
• [ ] requires PR #5206 to be merged first
• [ ] needs to be rebased to dev

every but the last commit belongs to the base PRs

[BrianMarre]

replaced by PR #5220 to reduce CI load