If a plugin implements Vst::IComponent::set_state() but
does not implement Vst::IEditController::setComponentState()
nor dedicated get/setState interface for the IEditController,
querying the parameters using Vst::IEditController::getParamNormalized()
returns values that do reflect the restored state.
In this case the host needs to save/restore all control-parameters,
and ignore values reported by ::getParamNormalized().
This fixes a state save/restore issue with softube.vst3, however
vstpresets are still broken: the GUI (IComponent) is updated,
however the controller isn't.
3722b8a94f