Reducing Lego Size | 节省 Lego 的尺寸

[0xJacky]

在 291c7f0 中，我们重构了 lego 中部分使用了的大型 SDK 的 DNS Providers 为原生的 HTTP 请求。

以 linux-amd64 的二进制为例，最终的编译产物体积由原先的 164.5MB 节省到了 74.8MB （~55%）

目前重构的 DNS Providers 有：

* alidns
* yandex cloud
* tencentdns
* sakuracloud
* huaweicloud
* cloudflare
* oraclecloud

目前我们的工作项目在：nginxui/lego，这是从 go-acme/lego 中 fork 出来的分支，我们希望有一天可以将这项改动 PR 回原项目。

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In 291c7f0, we refactored the DNS Providers that were partially utilized in lego to use native HTTP requests instead.

For the linux-amd64 binary, the final compiled product size was reduced from 164.5MB to 74.8MB (~55%).

The DNS Providers that have been refactored so far include:

* alidns
* yandex cloud
* tencentdns
* sakuracloud
* huaweicloud
* cloudflare
* oraclecloud

Our current work project is available at: https://github.com/nginxui/lego, which is a forked branch from go-acme/lego. We hope to eventually PR this change back to the original project.