refactor validation and add admin system

handler/utilities/utilities.go

@@ -0,0 +1,20 @@
+package utilities
+
+import "fmt"
+
+func ValidateUsername(username string) error {
+	if username == "" {
+		return fmt.Errorf("please enter the username")
+	}
+	return nil
+}
+
+func ValidatePasswords(pOne, pTwo string) error {
+	if pOne == "" || pTwo == "" {
+		return fmt.Errorf("please enter the password twice")
+	}
+	if !(pOne == pTwo) {
+		return fmt.Errorf("the two passwords entered were not the same")
+	}
+	return nil
+}