private void addStatusTextSupplier(Supplier<StatusText> supplier) {
		statusTextSuppliers.remove(supplier);
		statusTextSuppliers.add(supplier);
	}
Adds a supplier of status text messages.  The supplier will be polled
whenever the updateStatusText() method is called.
<p>
Use this status text scheme instead of {@link #setStatusText(String)} if
there are multiple locations that need to provide a status message at the
bottom of the dialog.

@param supplier StatusText supplier
Ghidra/Features/PDB/src/main/java/pdb/symbolserver/ui/LoadPdbDialog.java