extract common functionalities to common module. First application to lexvo name resolving
---
sysconfig::params::vhost : "int.corpusdelaparole.huma-num.fr"
sysconfig::params::db_name : corpus
sysconfig::params::db_drpl_name : corpusdelaparole
sysconfig::params::db_user : corpus
sysconfig::params::db_pw : corpus@mariadb
sysconfig::params::db_host : 127.0.0.1
sysconfig::params::db_port : 3306
sysconfig::params::es_host : 127.0.0.1
sysconfig::params::es_port : 9200
sysconfig::params::es_instance : "es_01"
sysconfig::params::tomcat_open_port : true
sysconfig::params::corpus_app_key : "v6kgofcM4mCqon7ioz9NKSjeug5wiKt6"