added VND currency

cointop/common/api/impl/coingecko/coingecko.go

@@ -302,5 +302,6 @@ func (s *Service) SupportedCurrencies() []string {
 		"ZAR",
 		"XDR",
 		"XAG",
+		"VND",
 	}
 }

cointop/common/api/impl/coinmarketcap/coinmarketcap.go

@@ -227,5 +227,6 @@ func (s *Service) SupportedCurrencies() []string {
 		"TWD",
 		"USD",
 		"ZAR",
+		"VND",
 	}
 }

cointop/conversion.go

@@ -42,6 +42,7 @@ var fiatCurrencyNames = map[string]string{
 	"TWD": "New Taiwan Dollar",
 	"USD": "US Dollar",
 	"ZAR": "South African Rand",
+	"VND": "Vietnamese đồng",
 }
 
 var cryptocurrencyNames = map[string]string{
@@ -84,6 +85,7 @@ var currencySymbolMap = map[string]string{
 	"TWD": "NT$",
 	"USD": "$",
 	"ZAR": "R",
+	"VND": "₫",
 }
 
 var alphanumericcharacters = []rune{'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z'}