Feature: add alias for version flag

[snitin315]

Is your feature request related to a problem? Please describe.

Currently only webpack --version is supported.

Most of the CLI supports both --version & -v

Example - node -v & node --version

Describe the solution you'd like

webpack -v should be supported as well.

Screenshots

Additional context

I will work on this issue if valid.

[alexander-akait]

Low priority, you can focus on priority issues from roadma