Problem 1 - Function Declarations Write the prototypes for several function calls, deducing the correct signature from the context in PrototypeTester. cpp Do not implement the functions themselves. That is already done. Place the prototypes in pe04.h. Problem 2 - Write a Function Write a function named binToDec() that accepts an integer parameter whose digits are meant to represent binary (base-2) digits, and converts that integer's representation to decimal (base-10). The function should return the integer value before it was converted. For example, given this code: