Dev-Params ---> Staging

[RLogik]

Now allow users to use hyphenated keys in user config (.phpytex.yaml). When parse, these are cleaned so that they can be used in code. E.g.

# .phpytex.yaml
...
parameters:
  file: src.params
  overwrite: ...
  options:
    ...
    author-name: "Maximilian Ulysses"
    author-surname: "Mustermann"
    page_language-list:
      - en-GB
      - de-DE
      - fr-FR
    ...
...

transpiles to

# src/params.py
...
author_name = "Maximilian Ulysses"
author_surname = "Mustermann"
page_language_list = [ "en-GB", "de-DE", "fr-FR" ]
...