favorite games enhancedment

[LiYefei]

I collect many games. Each time I play one of them，I must search it in the front again. I have try the favorite of retroarch but it seems not work for this project.
Is that possible to setup a favorite games list in the front when selecting game? Maybe just add a star shap button on the right conner of page and it's very easy to select or cancel. Then next time the favorite games should appears the front in the selection.
The list file supports push/pull to the sever just like other config files.