Complete the tsdocs task to download automatically the phaser-plugins
and scan their comments to add them in the phaser.comments.d.ts where
the plugins classes are defined.
-Improve the script to clean the different kinds of end of line
-Improve the alignement with @return multiline comments
-Add a jsdoc plugin to convert the class name of p2.js file, like this
the comments for the p2 classes are now included in the d.ts files.
