Push Pull of Parametric Sections Result in Pull of Explicit Sections

When Pushing non steel sections a significant number are beeing pulled as Explicite section, which should only be the last resort. It is worth checking the process of reading non standard sections. From RFEM.
[Test file](https://burohappold.sharepoint.com/:u:/s/BHoM/Edc5lsFUyndHsa2AIXuWUkkBAEaJ46GdBFs5maB0pudr_w?e=ux6Kzu)

Start with the RFEM6_Toolkit process that reads non-standard sections and use the linked test file to compare parametric and explicit section pulls. Done means non-steel parametric sections are not pulled as explicit sections unless explicit handling is the last resort.

Written by the indexing model from the issue text.