S2P WIP updated!

This should be the last but not least new feature - search the library. At the top of each list, you may type any keyword to search the library. And switching between lists, the keyword & search will be carried forward as well.

検索機能が付くようですね。ボクは入れっぱなしのランダム再生なのでたぶん使わない機能ですな。