[DOP-5429] Add rename_dir method

[dolfinus]

• Added mixin RenameDirMixin. It contains rename_dir method implementation and _rename_dir abstract method which should be implemented by inherited class (usually just the same as _rename_file).
• Added corresponding protocol SupportRenameDir
• Added new exception type DirectoryExistsError which is raised if someone tries to use some existing directory name as target name and if replace=False
• Added this mixin to FTP, FTPS, HDFS and SFTP. S3 does not have directories and corresponding method in client. That's why this method not in the BaseFileConnection interface
• Added test for new method with all parameter combinations

[codecov]

Codecov Report

Merging #40 (822c0c6) into develop (cbd51d0) will increase coverage by 0.05%.
The diff coverage is 100.00%.

@@             Coverage Diff             @@
##           develop      #40      +/-   ##
===========================================
+ Coverage    92.61%   92.66%   +0.05%     
===========================================
  Files          109      112       +3     
  Lines         5401     5440      +39     
  Branches       941      943       +2     
===========================================
+ Hits          5002     5041      +39     
  Misses         309      309              
  Partials        90       90              

Impacted Files	Coverage Δ
onetl/base/__init__.py	100.00% <100.00%> (ø)
onetl/base/supports_rename_dir.py	100.00% <100.00%> (ø)
onetl/connection/file_connection/ftp.py	96.20% <100.00%> (+0.09%)	⬆️
onetl/connection/file_connection/hdfs.py	95.87% <100.00%> (+0.03%)	⬆️
...netl/connection/file_connection/mixins/__init__.py	100.00% <100.00%> (ø)
...nection/file_connection/mixins/rename_dir_mixin.py	100.00% <100.00%> (ø)
onetl/connection/file_connection/sftp.py	85.95% <100.00%> (+0.23%)	⬆️
onetl/connection/file_connection/webdav.py	97.19% <100.00%> (+0.05%)	⬆️
onetl/exception.py	100.00% <100.00%> (ø)