adding new bundle ConfigBundle scaffold
bugfix : incorrect namespace for route
adding view and rendering it
adding global route definition
adding migrations related libraries to composer
adding Entity to KlConfigBundle
updating .gitignore (preventing migration files from being versioned and updating composer.lock)
adhering to code standard : Omit the @return tag if the method does not return anything;
adding getters/setters for class attributes
adding custom repository ; adding view logic