feat: add password and fix errors

pkg/password/fake.go

@@ -0,0 +1,24 @@
+package password
+
+import "errors"
+
+//FakePassword password
+type FakePassword struct{}
+
+//NewFakeService create a new fake password
+func NewFakeService() *FakePassword {
+	return &FakePassword{}
+}
+
+//Generate a new password
+func (p *FakePassword) Generate(raw string) (string, error) {
+	return raw, nil
+}
+
+//Compare compare two passwords
+func (p *FakePassword) Compare(p1, p2 string) error {
+	if p1 == p2 {
+		return nil
+	}
+	return errors.New("Invalid password")
+}