A configuration for postgresql is missing in config.sample.properties backend|frontend

[Jan-Marcek]

A configuration example for postgresql is missing.

Please update the files:
https://github.com/UnifiedViews/Core/blob/release/UV_Core_v1.5.5/backend/conf/config.sample.properties

https://github.com/UnifiedViews/Core/blob/release/UV_Core_v1.5.5/frontend/src/main/webapp/WEB-INF/config.sample.properties

[Jan-Marcek]

815b9fc