LG-512 Add a failure to proof url to service providers for LOA3

[stevegsa]

Why: So the SP can offer a custom page when a user fails to proof on LOA3.

How: Add a new column to service providers. Update any supporting classes.

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[jmhooper]

✅

[monfresh]

Is this related to the discussion we had with Dave about following the OIDC spec as opposed to having custom URLs? I don't remember what we decided. Is this new field for both SAML and OIDC providers?

[jmhooper]

Yeah, this should be for both SAML and OIDC. I don't remember a conversation with Dave about how it? I know we wanted it for the failure screens so that we can link to documentation about how to access services without remote proofing for service providers.