Add missing currency names

[mnurullahsaglam]

Add currency names of 30 of 31 countries in country_by_currency_name.json file. Also, Macau and Pitcairn Islands' name are fixed according to official. Each additions' references are down below. Only not sure of Palestine, which are a bit confusing since there are no official currency in the country.

Bosnia and Herzegovina: Wikipedia England: Wikipedia Brunei: Wikipedia Chad: Wikipedia Czech Republic: Wikipedia East Timor: Wikipedia Falkland Islands: Wikipedia Fiji Islands: Wikipedia French Polynesia: Wikipedia Guadeloupe: Wikipedia Guam: Wikipedia Guinea-Bissau: Wikipedia Holy See: Wikipedia Kazakhstan: Wikipedia Libyan Arab Jamarihiya: Wikipedia Macau: Wikipedia Pitcairn Islands: Wikipedia Martinique: Wikipedia Micronesia, Federal States of: Wikipedia Monaco: Wikipedia New Caledonia: Wikipedia Northern Ireland: Wikipedia Reunion: Wikipedia Russian Federation: Wikipedia Saint Kitts and Nevis: Wikipedia Scotland: Wikipedia Svalbard and Jan Mayen: Wikipedia Turks and Caicos Islands: Wikipedia Wales: Wikipedia Wallis and Futuna: Wikipedia

[samayo]

Thanks a lot :)

[mnurullahsaglam]

thank you for this repo