make path util classes public

src/main/java/net/schmizz/sshj/sftp/PathComponents.java

@@ -15,7 +15,7 @@
  */
 package net.schmizz.sshj.sftp;
 
-class PathComponents {
+public class PathComponents {
 
     public static String adjustForParent(String parent, String path) {
         return (path.startsWith("/")) ? path // Absolute path, nothing to adjust

src/main/java/net/schmizz/sshj/sftp/PathHelper.java

@@ -17,7 +17,7 @@ package net.schmizz.sshj.sftp;
 
 import java.io.IOException;
 
-class PathHelper {
+public class PathHelper {
 
     private final SFTPEngine sftp;
     private String dotDir;