feat: add a docker-compose in quick setup to test distributed sync #13815
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Issue
https://gravitee.atlassian.net/browse/APIM-11438
https://gravitee.atlassian.net/browse/APIM-11439
https://gravitee.atlassian.net/browse/APIM-11440
Description
Added docker-compose in quick setup to test distributed sync process with redis.
Added shell scripts to automate the testing.
Steps to use and test with screenshots and/or logs: https://docs.google.com/document/d/1dcxY4soOp5kqqBPQ3oWPJlwmjvr2rt9zovFZLDyKy5A/edit?usp=sharing
Additional context
Open Question:
Placement of shell scripts for automated testing by QA.
Work In Progress:
Clean up.
Sync between gravitee.yml and env vars.