Dockerized data processing

[mtklass]

• Dockerfile partially fixed.
  • Process stage now has necessary prerequisites.
  • Added build_env stage, which is used to do work on repository using build_env container.
• Added prepare-process-docker.sh script, which creates a copy of the process directory at process-docker, and does the npm install and npm clean-install steps.
• Added docker-run.sh script, which can be used to execute commands in a build_env container.
  • The build_env image has docker-entrypoint.sh, which, together with docker-run.sh, will expose minimal parts of the host OS to the build_env image so it can do work in as isolated an environment as possible
  • Added info to README on how to use these new tools.

[connorhsm]

Thank you for the contribution!