SOCKS5 and HTTP/HTTPS proxy support

[danielloader]

Is your feature request related to a problem? Please describe.
I'd like to be able to test remote endpoints via a proxy, for corporate environments or pseudo bastion server type network connectivity.

Describe the solution you'd like
Support SOCKS5 and HTTP/HTTPS proxies as configuration in the application.

Describe alternatives you've considered
None

Additional context
None