Mark WACZ support experimental

It's not complete enough for use yet.

Author: ato

src/org/netpreserve/jwarc/WaczReader.java

@@ -16,6 +16,8 @@
 /**
  * Reader for Web Archive Collection Zipped (WACZ) files.
  *
+ * EXPERIMENTAL API: May change or be removed without notice.
+ *
  * @see <a href="https://specs.webrecorder.net/wacz/latest/">WACZ Specification</a>
  */
 public class WaczReader implements Closeable {

src/org/netpreserve/jwarc/WaczWriter.java

@@ -23,6 +23,8 @@
 /**
  * Writer for Web Archive Collection Zipped (WACZ) files.
  *
+ * EXPERIMENTAL API: May change or be removed without notice.
+ *
  * @see <a href="https://specs.webrecorder.net/wacz/latest/">WACZ Specification</a>
  */
 public class WaczWriter implements Closeable {

src/org/netpreserve/jwarc/tools/WarcTool.java

@@ -93,7 +93,7 @@ private static void usage() {
         System.out.println("  stats       Print statistics about WARC and CDX files");
         System.out.println("  validate    Validate WARC or ARC files");
         System.out.println("  version     Print version information");
-        System.out.println("  wacz        Package WARC files into a WACZ file");
+        //System.out.println("  wacz        Package WARC files into a WACZ file (EXPERIMENTAL)");
     }
 
     private static void version() {