* Updated run.sh to support default override
This is equivalent to run docker-compose in the directory of the project (here "docker"). See: https://docs.docker.com/compose/extends/
Override allows to change some paramaters and extend the original compose file to your own environment (network config, CPU/RAM caps,...)
* Updated run.ps1 to support docker override file
Same as run.sh
* Added conditionals for override file absence
I misunderstood the documentation, that file must exist if file is specified on command line, added conditionals to support that case
* Update run.ps1 to test for override file presence
Same as .sh
