Prioritizing display of VC Fields When No RenderMethod Provided

[kayaelle]

From discussion at #460

@kayaelle One thing that has confused me for a while now is the presence of name, description, and image at multiple levels of the credential. In the event that name, description, or image appear both at the root level of the credential and at credentialSubject.achievement, how should the wallet handle that?

I think this is confusing too. The name, description, and image are intended to be specific to the VC that was issued whereas the credentialSubject.achievement is intended to be the generic description that applies to anyone that the badge was issued to. Up for discussion could be prioritizing the root level over the credentialSubject.achievement content.

I think this is a related but different discussion about prioritizing fields in VCs versus OB3. I'll make an issue for discussion. Note that currently this wallet is only displaying Open Badges fields.

[alexfigtree]

Closing in favor of: #513