Added Dandelion dependencies
Added JSON files for Datatables
First integration of Dandelion: the asset containing the Datatables initialization is created using the new DatatablesConfigGenerator
Added new dependency to datatables-core
Fixed JSON files for colreorder and fixedheader plugins
Started to adapt the extension loading using Dandelion core.
* Added JSON files for plugins, pagination type and filtering
* All corresponding Java classes now update the asset stack on-the-fly, instead of directly reading file from classpath
* Added new utility method available in all extensions : addScope(String scopeName)
Updated the version in all POMs
Fixed compilation in test classes