This commit moves code to look for vars files/dirs to a common place and
uses it for loading role defaults/vars. This allows things such as
'defaults/main' or 'vars/main' being a directory in a role, allowing
splitting of defaults/vars into multiple files. This commit also fixes
the role loading unit tests for py3 when bytestrings are used for paths
instead of utf8 strings.
This fixes#14248 and #11639.
* test/: PEP8 compliancy
- Make PEP8 compliant
* Python3 chokes on casting int to bytes (#24952)
But if we tell the formatter that the var is a number, it works
* make hash_params more robust in the face of many corner cases
Fixes#18680
Alternative fix to #18681
* add test case for role.hash_params
* Add role.hash_params test for more types
A set, a generator/iterable, and a Container that
is not Iterable.