Add EnvironmentInfo.IsDocker

[arodus]

Add EnvironmentInfo to determine if Nuke is running in a (linux) docker container. Unfortunately, I'm not aware of a way to reliably detect if we're running in a windows container.

I confirm that the pull-request:

• [x] Follows the contribution guidelines
• [x] Is based on my own work
• [x] Is in compliance with my employer

[Sam13]

@arodus In Windows container environment I check the existence of the service cexecsvc to decide whether I'm inside a container or not.

Source: https://stackoverflow.com/questions/43002803/detect-if-process-executes-inside-a-windows-container

Stack Overflow

Detect if process executes inside a Windows Container

It's simple. I would like to detect with code if my process is running inside a windows container. There are examples but they are all for linux based containers.

I'm looking for something unique...