[services] Lib - Tunnelbroker - Use database manager
Summary:
Depends on D3989
Inheriting from DatabaseManagerBase in the tunnelbroker to avoid the boilerplate and reuse common methods.
Test Plan:
You should be able to build tunnelbroker properly
cd services yarn run-tunnelbroker-service
Reviewers: palys-swm, geekbrother
Reviewed By: palys-swm, geekbrother
Subscribers: ashoat, palys-swm, Adrian, atul, yayabosh
Differential Revision: https://phabricator.ashoat.com/D3990