reqQueryFields would duplicate inner joins if the same property appeared in
dims and filter.

Was bugging the response when enabled

Related: simcaq/SCRUM#210 !31

Related: simcaq/SCRUM#210

Related: simcaq/SCRUM#210

This adds the option to have values accepted only by one parameter, instead of
globals, like it was then

It uses a object to set the url fields accepted and it's values, parse the
fields and build the query with the values automagically

SQL now is using new schema

SQL is now compatible with DB schema in simcaqdb3

- Mount route under '/api/v1/enrollment/location'
- It should list the location names for enrollments and school classes
- The reponse format is a lista of objects with each object having a location_id (CEBES014T1) and a description

Signed-off-by: João Victor Risso <joaovictor.risso@gmail.com>