#772: closing loading dialog now cancels the loading of the swf

#762:export pcode with diffren extension

libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/SWFInputStream.java

@@ -1060,6 +1060,10 @@ public class SWFInputStream implements AutoCloseable {
      * @throws java.lang.InterruptedException
      */
     public List<Tag> readTagList(Timelined timelined, int level, boolean parallel, boolean skipUnusualTags, boolean parseTags, boolean lazy) throws IOException, InterruptedException {
+        if (Thread.currentThread().interrupted()) {
+            throw new InterruptedException();
+        }
+
         boolean parallel1 = level == 0 && parallel;
         ExecutorService executor = null;
         List<Future<Tag>> futureResults = new ArrayList<>();