Commit title: Add smtp tls mail function

Description:
Commit title: Configuration file

Description:
    - create a conf file and function associated with a structure Conf
    - Add files at makefile and libcurl
    - Sent an email by gmail smtp in TLS
    - Adapt mail for test
Commit title: Send mail by SMTP TLS and config file

Description:
    - now i can use a config file for a lot of things nice :p
    - SMTP tls if functionnable