Run Juno in docker

[mrlp4]

Provided files would create Postgres, Hasura and Juno containers, connected in the right way between themselves. It is only necessary to fill .env file with settings, and start run.sh script.
Steps of what will happen after run.sh:

• Postgres container would be created;
• Hasura container would be created;
• They both would be connected to docker network;
• config.toml file for Juno will be created;
• Juno would be built to docker container;
• Juno would start parsing configured endpoint.

[alexanderbez]

Wow, thanks for contributing here @mrlp4. I left some initial feedback, I'll be happy to test this out shortly.

[mrlp4]

@alexanderbez what do you think about placing here example of .env file, i mean that it style slightly different than config.toml, values should not come as "string", but straight as is. Is it straight-forward enough?