CXS-3418

It was reported that generating CV’s using Documill was no longer working.

We use visualforce host URL for Documill authLoginUrl parameters, but Documill expects the external domain URL so a change was needed.

In CVGeneratorController.CVGeneratorMetaData we have replaced cxsCoreUtil.getVisualforceHost() with System.Url.getOrgDomainUrl().toExternalForm(); for oauthLoginURL parameter.

The user should not experience any change in behaviour.  CV Generation via Documill continues to work in the same way.