feat:adding payment form

package.json

src/app/app-routing.module.ts

src/app/app.component.html

src/app/app.module.ts

src/app/components/buyer/buyer.component.ts

.../forms/buyer-update-form/buyer-update-form.component.html

...ts/forms/buyer-update-form/buyer-update-form.component.ts

...components/forms/payment-form/payment-form.component.html

...components/forms/payment-form/payment-form.component.scss

...p/components/forms/payment-form/payment-form.component.ts

src/favicon.ico

src/index.html