[services] Lib - Add scripts to lib

Summary:
Depends on D3905

Adding scripts that should be run inside of the docker container to the services "lib".

Copied scripts:

• build_server.sh
• build.sh
• run_tests.sh

Modified scripts:

• run_server.sh
• generate.sh

Test Plan:
No real changes are applied, just moving stuff around, so services should still build and that's the test plan

cd services

yarn run-blob-service
yarn run-backup-service

Reviewers: palys-swm, ashoat

Reviewed By: ashoat

Subscribers: jonringer-comm, ashoat, palys-swm, Adrian, atul, yayabosh

Differential Revision: https://phabricator.ashoat.com/D3906