Package features
- copying files;
 - recursive copying of directories;
 - monitor the progress of copying.
 
Using
The CopyFile class contains methods:
copyFile- copies the file;watchCopyFile- copies the file, returns the stream with the progress of copying the file, ends the stream when copying is completed;copyDirectory- copies the directory recursively;watchCopyDirectory- copies the directory, returns the stream with the progress of copying the file, ends the stream when copying is completed;copyLink- copies the link.