feat(18-01): add the cabana money field (task 1)

- type: money on fields.yaml with currency or currencyFrom, scale (2..4,
  default 4) and max; boot fails naming the field on two sources, none,
  a bad scale or max, a column that is not a string or a Scanner/Valuer,
  or a currencyFrom that is not a string column
- a save answers 422 money.invalid, money.too_precise or money.too_large
  on the field and fills the accepted decimal string unchanged; the same
  check runs on controller, settings and relation child saves
- backend::lang money.* phrases in en and pl
- admin SPA: money.ts (parseMoneyInput, trimMoneyDisplay, formatMoney over
  Intl with the string itself), MoneyField.vue with the currency suffix,
  blur validation and the read-only box, preview through the control,
  the field scope on PreviewView; regenerated OpenAPI and TS types,
  rebuilt modules/boardwalk/dist
- acme.payments fixture with TestMoneyFieldCompile and the Docker
  TestMoneyFieldSmoke; forms.md Money section and cabana README

modules/cabana/testdata/payments/controllers/invoices/config_form.yaml

@@ -0,0 +1,4 @@
+name: New invoice
+form: ~/plugins/acme/payments/models/invoice/fields.yaml
+modelClass: Invoice
+defaultRedirect: acme/payments/invoices

modules/cabana/testdata/payments/controllers/invoices/config_list.yaml

@@ -0,0 +1,7 @@
+list: ~/plugins/acme/payments/models/invoice/columns.yaml
+modelClass: Invoice
+title: Invoices
+recordUrl: acme/payments/invoices/update/:id
+recordsPerPage: 20
+toolbar:
+    buttons: [create]