Adds Get Address BEP20 Token Holding for bscscan

Author: farukuzun

account.go

@@ -144,3 +144,15 @@ func (c *Client) TokenBalance(contractAddress, address string) (balance *BigInt,
 	err = c.call("account", "tokenbalance", param, &balance)
 	return
 }
+
+// AddressTokenBalance gets the BEP-20 tokens and amount held by an address.
+func (c *Client) AddressTokenBalance(address string, page int, offset int) (balance []TokenBalance, err error) {
+	param := M{
+		"address": address,
+		"page":    page,
+		"offset":  offset,
+	}
+
+	err = c.call("account", "addresstokenbalance", param, &balance)
+	return
+}

response.go

@@ -25,6 +25,12 @@ type AccountBalance struct {
 	Balance *BigInt `json:"balance"`
 }
 
+// TokenBalance token and its balance in pair
+type TokenBalance struct {
+	TokenContractAddress string  `json:"token_contract_address"`
+	Balance              *BigInt `json:"balance"`
+}
+
 // NormalTx holds info from normal tx query
 type NormalTx struct {
 	BlockNumber       int     `json:"blockNumber,string"`