Add Option to set preferred EmuMovies video Quality

[DOS76]

I'm loving the EmuMovies integration. I originally thought I wouldn't ever add videos and use the extra disk space for that but when going through BigBox they just make it look even better so I changed my opinion. The only issue I have is that I would still like to conserve as much space as possible by being able to choose if I download the regular MP4 Videos vs the High Quality ones. As of now if you add metadata to an individual game the Hi-Quality video is always checked and if you want to change it you can do so manually but I'm figuring that if you added metadata in bulk it would also choose the Hi-Quality first and only give you the regular quality if that is the only option. I would much prefer that I could set it up to be opposite of this and have it download the MP4 by default and only get Hi-Quality if there is no other source.