Onboard Canvas Credentials

<EntityDescriptor xmlns:ns0="urn:oasis:names:tc:SAML:2.0:metadata" entityID="https://api.badgr.io/account/saml2/saml2.uneb/acs/">
    <SPSSODescriptor protocolSupportEnumeration="urn:oasis:names:tc:SAML:2.0:protocol" AuthnRequestsSigned="false" WantAssertionsSigned="true">
        <AssertionConsumerService Binding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST" Location="https://api.badgr.io/account/saml2/saml2.uneb/acs/" index="1" />
    </SPSSODescriptor>
</EntityDescriptor>

assigned to @ian.boren

created branch 410-onboard-canvas-credentials to address this issue

mentioned in merge request !549 (merged)

closed with merge request !549 (merged)

mentioned in commit b950adcc