feat: add built-in .env support from dotenv-webpack plugin

[mertcanaltin]

@alexander-akait I tried to make an experiment
I would be very happy if you have a comment

issue:#3747

[linux-foundation-easycla]

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• ✅ login: mertcanaltin / name: Mert Can Altın (d090c6c)

[alexander-akait]

Sorry, we don't want reuse dotenv-plugin, we want to implement own deep integrated (with CLI) plugin with:

• cache support to avoid bad perf
• ESM support out of box, i.e. import.meta.env
• flexible loading logic
• good logging

and other features, so you don't need to install plguins to have .env support.

We started it #3759, so let's close, anyway thank you, if you want to be a part of development feel free to write your ideas in the issue and here #3759