added japanese number

See Wikipedia: https://en.wikipedia.org/wiki/Telephone_numbers_in_Japan

data/phone_formats.json

@@ -30,6 +30,7 @@
   "im": "+44 1632 961234",
   "it": "+39 01 123 456",
   "je": "+44 1632 961234",
+  "jp": "+81-3-1234-5678",
   "jm": "+1-876-555-1234",
   "kn": "+1-869-555-1234",
   "ky": "+1-345-555-1234",
@@ -60,4 +61,4 @@
   "vi": "+1-340-555-1234",
   "vn": "+84 1 234 5678",
   "za": "+27 11 907 1111"
-}
+}