Add possibility to specify own server

[1Euro7Cent]

I wanted to use this, but NPM can't provide the ~200mb in reasonable time.
It downloaded like 7mb in 20 minutes.

I got he URL where this tool gets the data and called it in my browser.
It downloaded 500 KB in 20 minutes

I also tried curl. Similar result:

My internet is defiantly not the problem

As a developer, I want to be able to cache the file on my local server, and be able to give this tool the address of that server.
On there I can keep it updated and send the last full downloaded file to this tool.

[ozum]

Could you please verify if it works for you when the URLs are changed to your own server address?

[1Euro7Cent]

A quick proof on concept. I spun up a server and downloaded the first ~1k lines. I duplicated them a few times to reach ~ 3 million lines (almost 300mb) to fill the data. It downloaded the file in about 1.5 minutes. In the same time NPM gave me ~400 KB

the url if you want to test it:
http://wings.mrserver.ddnss.de:25538

[1Euro7Cent]

Hard coding the URL also seems to work.
Please note that you don't set the main URL to the one I provided

[ozum]

I added custom URL parameters and related usage to the README. Please check the latest version if it helps.