If a wrapper package is generally in use in a deployment, it may want to override what we set as the library name in `CLIENT SETINFO lib-name <name>`. This allows doing so via the `DefaultOptionsProvider` (intentionally not on `ConfigurationOptions` directly as version isn't either).

Note that this does NOT upgrade the test suite to 7.2.0 RC1. I did test and this works, but there are other breaks we need to evaluate - I'll open another PR separately to demonstrate.