[Documentation][encode] Add and standarize docstring to encode.py (#1322)

* Add and estandarize docstring to encode.py

* Create changelog fragment

* Modified the google style to numpy

* Update changelog fragment

* Standarize numpy style

* Update encode.py

added newline to address pep8 error

* Fixed some  dcostrings

* Modified docstrings

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Co-authored-by: Rich Parker <[email protected]>
Co-authored-by: Fernando Flores <[email protected]>

Author: 3 people

changelogs/fragments/1322-update-docstring-encode.yml

@@ -0,0 +1,3 @@
+trivial:
+  - encode - Updated docstrings to numpy style for visual aid to developers.
+    (https://github.com/ansible-collections/ibm_zos_core/pull/1322).