Improve and refactor config

[StashaS]

Context:
Config is planned to be moved in a separate package to avoid potential name conflicts and reuse in other packages.

Task:

1. Request b0noI to create a new repo for config.
2. Migrate config files from this repo.
3. Minor refactoring for config usages:

• move config/config.py to conifg/init.py so import would be simpler
• since there variables should be treated as constants they should be upper case
• for imports we can than use something like from config import ...

4. Update README in the new and this packages if set up instructions changed.

[StashaS]

Implemented partly