Pong V1.0

Content:

• Added How to play section.
• Added settings menu. (Includes brightness control, render quality, resolution selection, sound effects volume slider and music volume slider)
• Added support for different aspect ratios. (Adds black bars to make the game maintain its original aspect ratios while working for any resolution)

Bug fixes:

• Fixed paddles movement getting restricted when the enlarger ability hadn't been used.
• Fixed buttons disappearing in paused view.
• Fixed game not pausing while pressing escape or P on the pause menu.