Added docker support for the MySQL database

[amarbajric]

resolves #4

Done:

• added new folder in Setup directory for mysql-docker
• added Dockerfile for creating custom image and including DB_setup.sql file
• modified and moved DB_setup.sql file
• building mysql image, running container and executing DB_setup.sql file automatically
• added docker-compose.yml file to automatically build image and set-up mysql docker container

ToDo:

• Test the mysql docker container:
  • cd into the /Setup/mysql_docker directory
  • run docker-compose up (or docker-compose up -d to truncate output) in your terminal
  • start all services and check if they can reach the database running in the docker container
• Include instructions into README (will be done by @amarbajric)

[stfnltnr]

Everything worked as expected except docker-compose.yml - in my case only version: '2' worked well. Imo a downgrade to version 2 should not be an issue. Can you verify that?

ERROR: Version in "./docker-compose.yml" is unsupported. You might be seeing this error because you're using the wrong Compose file version. Either specify a version of "2" (or "2.0") and place your service definitions under the `services` key, or omit the `version` key and place your service definitions at the root of the file to use version 1.
For more on the Compose file format versions, see https://docs.docker.com/compose/compose-file/

I'm running the following version.

>> docker version
Client:
 Version:      1.13.1
 API version:  1.26
 Go version:   go1.8.3
 Git commit:   092cba3
 Built:        Thu Oct 12 22:34:44 2017
 OS/Arch:      linux/amd64```
Server:
 Version:      1.13.1
 API version:  1.26 (minimum version 1.12)
 Go version:   go1.8.3
 Git commit:   092cba3
 Built:        Thu Oct 12 22:34:44 2017
 OS/Arch:      linux/amd64
 Experimental: false

>> docker-compose version
docker-compose version 1.8.0, build unknown
docker-py version: 1.9.0
CPython version: 2.7.14
OpenSSL version: OpenSSL 1.0.2g  1 Mar 2016

[amarbajric]

I would suggest you to upgrade docker or at least docker-compose as the newest compose file format is 3.6. Here is a link for upgrading compose only: https://github.com/docker/compose/releases

Below you can find my versions of docker and docker-compose

Suggestion:

• Try updating docker-compose and/or docker itself

• Alternatively we can downgrade to version: 2 which i would not recommend however. But it is an option if the upgrade does not work.