add file drop handler

You can define a folder and ingest files dropped into it.

pdb-ui/src/main/java/org/lucares/pdbui/FileDropZipHandler.java

@@ -50,7 +50,10 @@ public class FileDropZipHandler implements FileDropFileTypeHandler {
             final Optional<CsvReaderSettings> csvSettings = configProvider.provideCsvReaderSettings(entry.getName());
             if (csvSettings.isPresent()) {
                 final ArrayBlockingQueue<Entries> queue = performanceDb.getQueue();
-                final CsvToEntryTransformer csvToEntryTransformer = new CsvToEntryTransformer(queue, csvSettings.get());
+
+                final CsvReaderSettings csvReaderSettings = csvSettings.get();
+
+                final CsvToEntryTransformer csvToEntryTransformer = new CsvToEntryTransformer(queue, csvReaderSettings);
                 try (final InputStream inputStream = new BufferedInputStream(zipFile.getInputStream(entry),
                         1024 * 1024)) {
                     csvToEntryTransformer.readCSV(inputStream);