Is dotenv support possible?

[vicary]

Is there an existing issue for this?

• I have searched existing issues, it hasn't been reported yet

Use case description

In serverless.yml there is an option useDotenv where it searches for a .env file or it's variables in the same directory.

When composing services with serverless-compose.yml, it would be much easier to load one .env in the parent directory, and then pass them down to individual services via param.

Proposed solution (optional)

Add useDotenv option in serverless-compose.yml.