解决graphql-compose-mongoose中无法只更新定义模型中的新传入值属性的问题
用法：
import { supportPartialUpdate } from 'graphql-compose-partial-update';
import { schemaComposer } from 'graphql-compose';
...
schemaComposer.Mutation.addFields({
...supportPartialUpdate(updateUserInfo{ : UserTC.getResolver('updateOne') }),
});