Commented Issue: Emit navigation properties with source multiplicity '*' if the target multiplicity is one. [792]

we emit properties with source multiplicity '0..1' by default if the target multiplicity is 1. users cannot configure the source end of the multiplicity. So, we should emit a better default which in this case is '*'.
Comments: Please take into consideration any aspects of this that could be a breaking change. We'll want to consider a switch of some sort to get the old behavior.