Standalone importable Library (e.g. libzeronet)

I'd like to be able to incorporate Zeronet into other applications so they can access the network to do API calls or basic HTTP requests. Python's great, but running an exec() process in the background requires the client have the right version, and dependencies.

A neat example of this is Popcorn Time, which is built in QT, Android, and iOS. Clients being able to start their own Zeronet server in the background when the app launches, and make requests across a distributed network instead of to a central API server for their data would make them much more resilient.

It would also increase the Zeronet node count - and usage - enormously. Apt, Cocoa, or Composer packages would be incredibly useful.

该 issue 没有指出任何文件、测试或入口点。首先追踪当前 Python 客户端如何通过 exec() 启动，以及如何安装其依赖；然后确定可导入库和 package 的边界。完成标准是应用程序无需单独的进程或匹配的环境即可启动或使用 ZeroNet，并且已定义 package 目标。

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