DOCKER: Assemble the docker container

[fet1sov]

Description

Assemble the docker container on Alpine or other image, make it compact as it possible.
Image need to have Deno runtime and get the environment file.
Don't forget to describe the .dockerignore file for less garbage in the image.

List of functionality requirements

• Describe Dockerfile
  • Install Deno runtime
• Describe .dockerignore file
  • Add .devcontainer into ignore
  • Add .github into ignore