For this problem you will write a polynomial parser. It will accept a string representation of a polynomial function and an integer value for x. Your method will then return a double that is equivalent to the y-value output of that function for the given x-value input parameter. The polynomial will have positive integer coefficients and non-negative single-digit integer exponents. Exponents of 1 or 0 must be explicit in the polynomial and may NOT be implied (for example "y=x+2" must be passed in as "y=1x^1+2x^0"). All coefficeints must be explicitly indicated, so "y=x^2" must be passed in as "y=1x^2"