v1.5.3

v1.5.3 (#155)

* chore: add multiprocessing experimental

* chore: send n_proc

* fix: improves Path.list_dir

* fix: improves Path.list_files and fix usages

* fix: improves and add tests

* fixes: fixed clean_dir function

* fixes: remove tests of deprecated functions

* fixes: improves chunk function

* fixes: fix rescale_values up when send fill_with.

* fixes: improves rescale_values function
- you can choose type of filling when rescaling values pre, inner or post