Make constructor of ChunkTaggedToken public

If an English or German module is loaded with a different classloader than Core, you will get an IllegalAccessError.

languagetool-core/src/main/java/org/languagetool/chunking/ChunkTaggedToken.java

@@ -37,7 +37,7 @@ public class ChunkTaggedToken {
  /**
  * @param readings may be null, caused by differences in tokenization we don't always have a 1:1 mapping
  */
- ChunkTaggedToken(String token, List<ChunkTag> chunkTags, AnalyzedTokenReadings readings) {
+ public ChunkTaggedToken(String token, List<ChunkTag> chunkTags, AnalyzedTokenReadings readings) {
  this.token = Objects.requireNonNull(token);
  this.chunkTags = Objects.requireNonNull(chunkTags);
  this.readings = readings;