Semantic release management support

[dieffrei]

I have been using fflib since 2013 it is great. But one of commons complains about fflibs is about documentation and change-log. This PR is about to automatic generate release notes and change log based on semantic commit messages.

More infos about it here: https://github.com/semantic-release/semantic-release

The result after commit on master you can see: https://github.com/dieffrei/fflib-apex-common/releases

It is necessary to set a specific variable to able to commit automatically to CI, feel free to reach me out.

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This change is 

[afawcett]

@dieffrei what a great idea! Thank you. Will take a look.

[dieffrei]

Thank you guys! Soon as possible I will submit a PR to help to lint commit Messages in the right way