make GroupCacheStatusInfo and MutableStatusInfo public

Signed-off-by: radoslaw.chrzanowski <radoslaw.chrzanowski@allegro.pl>

Author: Ferdudas97

cache/src/main/java/io/envoyproxy/controlplane/cache/GroupCacheStatusInfo.java

@@ -8,7 +8,7 @@
  * {@code GroupCacheStatusInfo} provides an implementation of {@link StatusInfo} for a group of {@link CacheStatusInfo}.
  */
 @ThreadSafe
-class GroupCacheStatusInfo<T> implements StatusInfo<T> {
+public class GroupCacheStatusInfo<T> implements StatusInfo<T> {
   private final Collection<StatusInfo<T>> statuses;
 
   public GroupCacheStatusInfo(Collection<StatusInfo<T>> statuses) {

cache/src/main/java/io/envoyproxy/controlplane/cache/MutableStatusInfo.java

@@ -7,7 +7,7 @@
 import java.util.concurrent.ConcurrentMap;
 import java.util.function.BiFunction;
 
-class MutableStatusInfo<T, V extends AbstractWatch<?,?>> implements StatusInfo<T> {
+public class MutableStatusInfo<T, V extends AbstractWatch<?,?>> implements StatusInfo<T> {
   private final ConcurrentMap<Long, V> watches = new ConcurrentHashMap<>();
   private final T nodeGroup;
   private volatile long lastWatchRequestTime;