Create Joi validation for env variables in all services

[galethil]

• The feature was discussed in discussions of this repository.
• I have searched the issues of this repository and believe that this is not a duplicate.

Description 💡

• validate env variables with Joi validation
• add script for generating markdown file environment-variables.md in each service
• add running of script in all services into release procedure
• add a separate script that will allow to run validation of present env variables against the validation without starting of service

Discussion-reference: