[PYTH-002] Add Python list operations and foundational programs

[Sindhu1702013]

• Added List Operations Program (python/P03_ListsOperations.py):
  Introduces a comprehensive program demonstrating various Python list operations, including slicing, append(), index(), sort(), pop(), remove(), insert(), count(), extend(), and reverse().
• Introduced Foundational Python Programs:
  • python/P01_hello.py: A basic program featuring a justPrint function to output a message.
  • python/P02_InstanceMethods.py: Illustrates the concept and usage of instance methods within a Vehicle class.
  • python/P02_VariableScope.py (and P02_VariableScope copy.py): Explores Python's LEGB (Local, Enclosing, Global, Built-in) rules for variable scope.
• Included Algorithmic Example Programs:
  • python/P04_Factorial.py: Implements a recursive factorial function to calculate the factorial of a given number.
  • python/P05_Pattern.py: Contains multiple functions (pattern1 through pattern6) to print various star patterns.
  • python/P06_CharCount.py: Provides a charFrequency function to count the occurrences of each character in a string.

[email-to: sindhuja.golagani@techolution.com]