feat(invoice):基本完成商户发票记录功能，待测。

vo/invoice.go

@@ -25,3 +25,15 @@ type InvoiceCreationForm struct {
 	TaxRate   decimal.NullDecimal `json:"taxRate"`
 	Covers    []string            `json:"covers"`
 }
+
+type ExtendedInvoiceResponse struct {
+	InvoiceResponse
+	Cargos []*model.InvoiceCargo             `json:"cargos"`
+	Covers []*model.SimplifiedTenementCharge `json:"covers"`
+}
+
+type ExtendedInvoiceCreationForm struct {
+	InvoiceCreationForm
+	InvoiceType *string `json:"invoiceType"`
+	InvoiceNo   string  `json:"invoiceNo"`
+}