Write a Keil uVision 5 project that allows a user to do the following three tasks when it is compiled and loaded on the STM32L476 Discovery Board that we use:
• toggle both onboard LEDs when the center button of the joystick is pushed
• turn on both onboard red and green LEDs when up button of the joystick is pushed
• turn off both onboard red and green LEDs when down button of the joystick is pushed
