Add dictionary utils to expand dotted notation dict keys to nested dictionaries

[nicc777]

Brief Description of the Enhancement

Convert something like { "a.b.c": "test" } to { "a": { "b": { "c": "test" } } }

Describe the benefit of this proposed enhancement

Allow for better template processing in projects like py-animus-extensions

Code examples, pseudo code or any other technical description of the proposal

n/a