Check that input is array_like, if required

[BenjaminRodenberg]

Related to #79.

[BenjaminRodenberg]

@MakisH @IshaanDesai Note: I will implement check_array_like for all functions that actually accept a array_like, if you agree with the general approach. Just don't want to roll this out to the whole bindings just to revert/change it. Let's prototype this first at the example of read_block_scalar_data and write_block_scalar_data

[BenjaminRodenberg]

You can see the actual error here: https://github.com/precice/python-bindings/pull/80/checks?check_run_id=1710161099#step:7:122

[MakisH]

This error message is very helpful and much better than before! 👍

I have not tried running the code. The target branch looks correct. Maybe squash your two commits.

[BenjaminRodenberg]

Now all API functions are fixed in the same fashion. Waiting for the review of @IshaanDesai. I will squash everything into one single commit 👍