Add load dependencies on Dependency Types

[alelom]

Description:

Add load dependencies on Dependency Types to allow to push the load at the same time (BHoM/BHoM_Adapter#332).

[peterjamesnugent]

Hi @alelom was this not an optional bit of functionality or is required for all adapters?

[alelom]

Hi @alelom was this not an optional bit of functionality or is required for all adapters?

It's required by all adapters that want to leverage the functionality of pushing all loads at same time of elements, which is in turn required for Karamba_Toolkit to work. It is optional, but it would be great to have it in anywhere.