feat: added the option to read the --force option from .env file

[SteBaum]

Which issue(s) this PR fixes

Fixes None

Additional comments

This PR is related to PR 513 prevent overriding existing plan #550 which is already merged. It enables the user to have an environment variable FORCE_PLAN which if set to True which will automatically force the overriding of the previous plan without the prompt asking for confirmation so it disables the interactive mode and no need to put the option --force each time after the tdp plan command and acts as a batch-mode.

Agreements

• [x] I hereby declare this contribution to be licensed under the Apache License Version 2.0, January 2004.
• [x] I hereby agree to grant TOSIT a copyright license to use my contributions.