Add semantic release

[idirouhab]

I want to add a semantic release to this project.
A new major, minor or feature version would be created depending on the commits.

Please refer to the following link to know more about how to create them:
https://github.com/go-semantic-release/semantic-release

The idea behind it is to allow Travis (or any other CI tool) to trigger a new Version depending on the commit message:

For example:

A new fresh version was added then, in the commit feat message must be used:
feat: New feature created -> v1.0.0
feat: Something else -> v2.0.0
chore: Something small but useless -> v2.0.0
fix: Issue in the previous version -> v2.0.1