Evaluation Method Consistent Behavior for Nested Elements

[enarhi]

Description:

Currently, LCA_Toolkit has inconsistent behavior for elements with nested elements. Per BHoM/BHoM_Engine#2895, all elements should return their volumes and aggregate materials including all nested elements. Accordingly, a Wall with Openings fed into the LCA Evaluate method should return results inclusive of the values of the nested Opening Elements.

Steps to reproduce:

Evaluate elements with nested elements, such as Physical Walls of Facade Panels with Openings.

Expected behaviour:

Result inclusive of all nested elements the element contains in accordance with general BHoM compliance, agreed on per BHoM/BHoM_Engine#2895.