Add Docker configuration for local development

[henriquepjv]

• I've checked that this isn't a duplicate issue.

[henriquepjv]

I saw that there is an already created PR for docker configurations from 2018. But i made a simpler solution because I want to contribute but I dont want to install all the dependencies on my pc.
May i create a PR with my solution?
Thanks 😃

[aslafy-z]

Hello @henriquepjv
Can you have a try over #76?

git clone https://github.com/aslafy-z/swag-for-dev -b add-dockerfile

and follow up at: https://github.com/aslafy-z/swag-for-dev/blob/add-dockerfile/CONTRIBUTING.md#start-using-docker

It's now ready and needs reviews