feat: get support chain api

src/model/response/support_response.go

@@ -0,0 +1,10 @@
+package response
+
+type NetworkTokenSupport struct {
+	Network string   `json:"network"`
+	Tokens  []string `json:"tokens"`
+}
+
+type SupportedAssetsResponse struct {
+	Supports []NetworkTokenSupport `json:"supports"`
+}