Chronos: An MVP docker for single node with build-args

[zpeng1898]

Description

1. Why the change?

To help users who pursue a quick use of Chronos build a docker image with dependencies installed and unitest examples passed. Users can build with build-args so as to customize their installation mode.

2. Summary of the change

Add a directory BigDL/docker/chronos-args with a Dockerfile, install-python-env.sh, and README.md.

3. How to test?

Go into the directory BigDL/docker/chronos-args and follow README.md in it.

4. New dependencies

[TheaperDeng]

Will hold this PR until #5175 is merged