Dirichlet coupling not implemented for 3D-0D coupling with svZeroDSolver

Description

Currently, Dirichlet coupling for 3D-0D coupling with svZeroDSolver is not implemented. the user can specify dirichlet coupling in the xml config file but the simulation will crash.

In Dirichlet coupling we are enforcing pressure from the 3D domain as a boundary condition for the 0D domain and returning the resulting flow rate to the 3D domain

This would apply, for example, at the aortic inlet where you want a flow rate coming from the lumped parameter heart model to be applied as an inflow BC on the aortic inflow face.

Reproduction

in teh xml file, in an Add_BC node, specify dirichlet coupling as follows:

<Add_BC name="inflow"> <Type>Neu</Type> <Time_dependence>Coupled</Time_dependence> <svZeroDSolver_block>inflow</svZeroDSolver_block> </Add_BC>

Expected behavior

Enforce the pressure from the 3D domain as a boundary condition for the 0D domain and returning the resulting flow to the 3D domain

Additional context

No response

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