Start implement proper unicode support.
Implement strong unicode support.
Continue implements strong unicode support.
Rename "foundations.strings.toUnicode" definition "foundations.strings.toString".
Update various docstrings.
Add international units tests to "foundations.tests.testsFoundations.testsWalkers" module.
Add missing attributes to "foundations.tests.testsFoundations.testsWalkers.__all__" attribute.
Add international units tests to "foundations.tests.testsFoundations.testsParsers" module.
Fix tests in "foundations.tests.testsFoundations.testsIo" module.
Merge branch 'feature/unicode' into develop