Output link to yaml file

This is clickable in intellij. But for those who aren't in intellij
also print out the real path
Include line number in output file
output expected file path for rules test
Added path to .sql file too
Extracted util method
include suffix in real path output
It's RulesTest, not yaml
merge ScottDugas: Output yaml path

Merge pull request #1399 from ScottDugas/sql-layer/output-yaml-path
https://github.com/FoundationDB/sql-layer/pull/1399