Adds ability to force-select specific audio and subtitle streams for the anime converter

src/main/java/net/knarcraft/ffmpegconverter/converter/Converter.java

@@ -29,4 +29,5 @@ interface Converter {
      * @return <p>A list of commands</p>
      */
     String[] generateConversionCommand(String executable, File file, List<StreamObject> streams, String outFile);
+
 }