For version 0.0.7 releae

Add new methods in fileutils: is_dir_empty, remove_dir (#21)

* Update README.md

* Attempt to fix codecov: https://github.com/codecov/codecov-action

* Move --cov-report to setup.cfg

* Add is_dir_empty() and its tests

* Avoid using hard-coded tmp path

* Add remove_dir() and its tests

* Refine fileutils tests

* *args for all fileutils

* Adjust tests

* Prepare for v0.0.6

* fix style issue

Fix import issue for new methods (#14)

Add join_path for fileutils and SHA1/256 support for hashutils (#9)

* Add build option for Sphinx Documentation
* Add recursive support for fileutils, reduce duplicate file_ext_names normalize
* Add join_path wrapper
* Add SHA1 & SHA256

set version as 0.0.3

Set new version

fix makefile for publish

new version for scratch