Create Config class to load config files in memory

[jlenon7]

Description

Config class will load configuration files in memory. The difference between @secjs/config and this class, is that this class can load only one specific file in sync ou async mode.

Package version

1.7.3

Relevant Information

This package will help a lot other configuration file dependent packages like @secjs/logger, @secjs/storage and @secjs/database. Because the ideia is to migrate this packages to Athenna organization. @secjs/config will be migrated too, but @secjs/config will use this Config class to handle the files.