Import rules specifications for ESLint plugin from central repository

[utarwyn]

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Based on the enhancement done in #16 for the Sonar plugin, the idea would be to import rules specifications for the ESLint plugin from central repository too.

There are few limitations because at the moment the artifact is created using Maven with .html and .json files inside. But for the ESLint plugin we need to have a package that can be used by NPM with .md files inside. The main goal is to find a way to generate a package like this.