Annotation in surveySpectra2 has disappeared

[bryanhanson]

At some point, the method annotation in surveySpectra2, which is added by ChemoSpecUtils::.ggAnnotate, has disappeared. Some initial testing hasn't been fruitful, the call seems correct, the coordinates and label seem correct, inspection of the object seems correct, but the annotation is not showing up.

Workaround for users: use grid::grid.text.