Use npmrc proxy and strict-ssl settings when downloading deps

[mynameisstephen]

Allows those behind corp firewalls to download required dependencies

[mynameisstephen]

hi, can we get this review and merged?

[PaulFreund]

This fixed downloading for me too, only thing I had to change is this -> self and the positions in the file (as the es6 folder is gone) Can we update and merge this please?

[Julusian]

Is this still a problem?
the library used to download files has changed, so it might handle proxies better or might not

[audetto]

This is still a problem.
The new library is axios which supports proxies, but cannot handle https over an http proxy.
Since most of all traffic is https, this is the same as not working at all.

axios/axios#4766
axios/axios#925

It is unbelievable that in 2023, we are still talking about basic network functionality in node...