Add option to not check the server certificate

[netmilk]

Good idea from PR #293. Local servers in test environments don't usually have a signed certificate.

[nstielau]

The option to specify the Certificate Authority and the client-side certificate would also be helpful.

[pcman312]

Are there any plans to implement this? This is use case that we have and we can't use this tool unless this feature is implemented.

[honzajavorek]

@pcman312 This would be definitely a wanted feature, but I think the maintainers should focus on bigger challenges now, which are hard to contribute. This is a kind of thing anyone can easily send as a Pull Request.

We're keen to guide and support anyone willing to work on this. Just let us know here and we'll point you to what needs to be done. The original #293 can work as a good starting point as well.