Log statistics of all jdbc queries

## Context 
We needed to log statistics of all jdbc queries.

## Description
- Completion of the `.gitignore` file to filter log files
- Creation of a service that log statistics of all jdbc queries :
  * add a configuration parameter named `AdministrationService.recordJdbcStatistics` to enable/disable the service
  * add a configuration parameter named `AdministrationService.jdbcUsersFilter` to filter the application users for which statistics are computed