Setup Backend CI/CD

[Irishmun]

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[Irishmun]

set up github actions in: Q1-2022-APIGateway (build on push to master) Q1-2022-Express-Survey-Service (build on push to master & publish package on release)

[Irishmun]

• [x] Express survey service: build/test actions on master push
• [x] Express survey service: package creation on release
• [x] API gateway: build/test actions on master push
• [x] API gateway: package creation on release
• [x] mental breakdown over making this work
• [x] create docker compose file for all of this