Pep8 Python Base Selection Models Update

[Martin-Molinero]

Description

• Update python base selection models to pep 8, keeping backwards compatibility support

Related Issue

See #7909

Motivation and Context

Base UniverseSelectionModel/FundamentalUniverseSelectionModel/OptionUniverseSelectionModel/FutureUniverseSelectionModel were not backwards compatible with new pep8 naming support.

Runtime Error: Please overrride the 'Select' fundamental function
  at Select
    raise NotImplementedError("Please overrride the 'Select' fundamental function")
 in FundamentalUniverseSelectionModel.py: line 84

in

class UniverseModel(FundamentalUniverseSelectionModel):
    def __init__(self) -> None:
        super().__init__(None)

    def select(self, algorithm, fundamental):
        ...

Requires Documentation Change

N/A

How Has This Been Tested?

Existing tests

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• Refactor (non-breaking change which improves implementation)
• Performance (non-breaking change which improves performance. Please add associated performance test and results)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Non-functional change (xml comments/documentation/etc)

Checklist:

• My code follows the code style of this project.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.
• My branch follows the naming convention bug-<issue#>-<description> or feature-<issue#>-<description>