Support for API Places (New)

**Is your feature request related to a problem? Please describe.**
I would like to use this API:
https://developers.google.com/maps/documentation/places/web-service/text-search?hl=fr

**Describe the solution you'd like**
It would be nice to be able to use google-maps-services-python for that.

**Describe alternatives you've considered**
import requests

**Additional context**
URL of Places (New) starts like that:

instead of:

首先，将 Places (New) Text Search 文档与 google-maps-services-python 对 Places APIs 的现有支持进行比较。跟踪库当前的 Places 入口点，并确定请求、身份验证和响应要求；当新 API 可以通过库使用，而不需要直接发送请求时，即表示完成。

由索引模型根据 Issue 内容生成。