fix(client/auth): Auth changed to Bearer

Author: yusufpapurcu

client.go

@@ -58,7 +58,7 @@ type Client struct {
 
 // TokenAuth sets authorization headers for subsequent requests.
 func (c *Client) TokenAuth(token string) *Client {
-	c.clientTransport.header.Set("Authorization", "Basic "+token)
+	c.clientTransport.header.Set("Authorization", "Bearer "+token)
 	c.clientTransport.header.Set("apikey", token)
 	return c
 }