[✨ Feature request]: Simplify imports

[viktor-rick]

Description

As a user, I would like to have my imports nicely structured (and PEP8 compliant). Current import structure is too long for this.

Current import
from blueprints.codes.eurocode.nen_en_1993_1_1_c2_a1_2016.chapter_6_ultimate_limit_state.formula_6_5 import Form6Dot5UnityCheckTensileStrength

Proposed design (both the original and):
from blueprints import Form6Dot5UnityCheckTensileStrength

Acceptance Criteria

• All modules in blueprints.codes.eurocodes can be imported through blueprints (or similar).
• A scalable solution is designed, so this automatically works in future updates
• Only classes in the eurocode can be accesses
• After @RickDGO's noted: The imports are tested

Dependencies

No response

Confirmation

• I have checked that this feature does not already exist in the issue tracker.
• I have read and understood the contribution guidelines.

[viktor-rick]

As discussed (as certain forms exist in multiple chapters):

from blueprints.codes.eurocode.nen_en_1993_1_1_c2_a1_2016 import Form6Dot5UnityCheckTensileStrength