Implemented Hangman game in Python.

[naman648]

Working process/flow:

• Word Selection: A random word is chosen from a list of words.
• Game Loop:

1. The player is shown their remaining lives and used letters.
2. The current state of the word is displayed, with guessed letters shown and unguessed letters as underscores.
3. The player guesses a letter.
4. If the letter is correct, it's removed from the word's letter set.
5. If the letter is incorrect, the player loses a life.

• Win/Lose Condition:

1. If all letters are guessed, the player wins.
2. If the player runs out of lives, they lose.