Add an example of local control plane by docker-compose

[t-kikuc]

What this PR does / why we need it:

Add an example of building a control plane locally by docker-compose
in order to enable users to experiment control plane / piped easily.

The codes are based on @kevin-namba 's #4139

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 28.94%. Comparing base (aeb3687) to head (bd585dd).
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #4822      +/-   ##
==========================================
+ Coverage   28.91%   28.94%   +0.02%     
==========================================
  Files         317      317              
  Lines       40333    40333              
==========================================
+ Hits        11662    11674      +12     
+ Misses      27743    27731      -12     
  Partials      928      928              

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[t-kikuc]

I will move this DEMO to another repository.

[ffjlabo]

📝 talked in the public meeting

• We will new repo to locate the docker compose file
• For a demo, we should avoid locating it to the main repo

First, Add each component README link to the CONTRIBUTING.md
Later, let’s discuss more about the improvement