Adding support to build docker images with the engine-httpserver running as default

[lucasbm88]

Now we have a CLI to build docker images.

This fixes issue #35

This first version is able to build two type of docker images:

• base - This is the base docker image that should be extended by any other marvin image.
• spark - This is a docker image that uses marvin base and adds spark on top of it. Ideally should be used by engines that are spark-dependent.

Requirements:

• The host machine should have docker installed.
• The user running marvin CLI should be part of docker group (to avoid running with sudo). See https://docs.docker.com/engine/installation/linux/linux-postinstall/

How to test:

• Clone this branch
• Generate a new project: marvin engine-generate
• Customize with your code (optional)
• Build the docker image: marvin engine-dockerbuild (run --help and play around with parameters)
• Run the image just build: docker run -it marvinai/marvin-spark
• Call the REST pipeline endpoint and check that everything is working fine.

Custom spark configuration:

• If you want to use custom spark files, replace the base files in <engine_home>/docker/marvin-spark-docker/spark-conf/* and build the image.

[codecov-io]

Codecov Report

Merging #37 into master will increase coverage by 0.75%.
The diff coverage is 23.07%.

@@            Coverage Diff             @@
##           master      #37      +/-   ##
==========================================
+ Coverage   49.57%   50.33%   +0.75%     
==========================================
  Files          28       25       -3     
  Lines        2104     2110       +6     
  Branches      210      211       +1     
==========================================
+ Hits         1043     1062      +19     
+ Misses       1057     1044      -13     
  Partials        4        4

Impacted Files	Coverage Δ
marvin_python_toolbox/management/engine.py	27.52% <23.07%> (-0.32%)	⬇️
...es/python-engine/project_package/_compatibility.py
...emplates/python-engine/project_package/_logging.py
...on-engine/project_package/data_handler/__init__.py
marvin_python_toolbox/common/config.py	96.96% <0%> (+71.96%)	⬆️

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