Flawed logic for get/set/delete attribute

[rsb-23]

base.py : if name not in self.normal_attributes and name.lower() == name:

Issue : This logic is based on the letter-case of the instance variables along with exception for normal_attributes.

Impact:

1. Makes modification to VBase and sub-classes challenging.
2. Can't implement linters with default or minimal settings.
3. Adds to technical debt

Expectation: To use a logic which clearly denotes the actual business requirement.