TNG#1045 : makes TextFileBasedViolationStore have public visibility

so that it can be subclassed from any package

Signed-off-by: danhaywood <dan@haywood-associates.co.uk>

archunit/src/main/java/com/tngtech/archunit/library/freeze/TextFileBasedViolationStore.java

@@ -41,7 +41,7 @@
 import static java.util.stream.Collectors.toList;
 
 @VisibleForTesting
-class TextFileBasedViolationStore implements ViolationStore {
+public class TextFileBasedViolationStore implements ViolationStore {
     private static final Logger log = LoggerFactory.getLogger(TextFileBasedViolationStore.class);
 
     private static final Pattern UNESCAPED_LINE_BREAK_PATTERN = Pattern.compile("(?<!\\\\)\n");