Release v1.20.0

What's Changed

Compatible with RFEM 6.06.0010.176 (3.6.2024) onwards.
(!) This release affects backward compatibility in result tables (see changes in PR#370).

• Added TimberDesignFireConfiguration by @heetrojivadiya in #353
• Heet update result tables by @heetrojivadiya in #357
• Heet update initModel by @heetrojivadiya in #358
• Heet - design support by @heetrojivadiya in #359
• Typo in exports.py by @heetrojivadiya in #361
• Update hall.py by @heetrojivadiya in #364
• Heet member spring by @heetrojivadiya in #363
• Heet line release type update by @heetrojivadiya in #366
• 303 request results table manager by @TomasPail in #370

Full Changelog: R-v1.19.5...R-v1.20.0