Publish the utility functions as separate packages

[aminya]

The utility functions I have written for setup-cpp are general, and they can be published as a separate package on npm to allow others to use them. https://github.com/aminya/setup-cpp/tree/master/src/utils

• [x] exec-powershell
• [x] extension-tools
• [x] get-works
• [x] root-tools
• [x] untildify-user
• [x] user-access
• [x] add-env
• [ ] os-detect
• [ ] extract
• [x] setup-apt
• [ ] setup-bin
• [x] setup-brew
• [ ] setup-choco
• [ ] setup-dnf
• [ ] setup-pacman
• [ ] setup-pip
• [ ] version-tools

[aminya]

We can start with a mono-repository for now. Then later we can move the utils to a separate repository if needed.