Docker support

[peter279k]

According to the README, it looks like this node build has many sections for developers.

It's not easy for developers to do this and I think we can add the Dockerfile or docker-compose.yml files in this repository.

If this issue is accepted, I can help this repository to complete the Docker support :).

[angelexevior]

Casting my vote,
Hoping to get some interrest to this!

No pun intented ;)

[ariochain]

there is this fork https://github.com/veranodes/docker-arionum with docker implementation and https://github.com/ariochain/docker-arionum-node