New Validation utils to validate the commit message

[mistricky]

• plugin system that allows users to create their own plugin to enhance rules of validation.
• custom rules. The user can create a custom rule of validation to validate the commit message.
• configuration driver. The user just needs to provide a config file in the root by package.json side, and the config file will tell the CLI how to validate the commit message that contains validation rules and some plugins, just like .eslintrc or something like that.