Driver function for gpio pins of atmega16/32
#Usage:
*Gpio_Init() equivalent to DDR register *Gpio_Write() equivalent to PORT register *Gpio_Read() equivalent to PIN register
#Funtion paramters:
*Gpio_Init:-
int Gpio_Init(char Port, int Pin, bool Direction)
accepts character for PORT address in caps - 'A'/'B'/'C'/'D'. accepts interger for Pin number of that port 0 to 7. accepts character for the the input-'i'