Go program that compares software versions in the x.y.z format
Usage:
x := "1"
y := "1.0.1"
z := "1.0"
fmt.Println(hisuru.Compare(x, y)) // 1 = y
fmt.Println(hisuru.Compare(x, z)) // 0 = equal
fmt.Println(hisuru.Compare(x, a)) // -1 = x