feat: add currency Congolese franc

frappe/geo/country_info.json

@@ -620,7 +620,12 @@
  },
  "Congo, The Democratic Republic of the": {
   "code": "cd",
-  "number_format": "#,###.##"
+  "number_format": "#,###.##",
+  "currency": "CDF",
+  "currency_name": "Congolese franc",
+  "currency_symbol": "FC",
+  "currency_fraction": "Centime",
+  "currency_fraction_units": 100
  },
  "Cook Islands": {
   "code": "ck",