Improve Loading Replays UI

[ImTimK]

Besides the issue of replays not showing correctly when one is missing #126, I have several suggestions on how to improve the UI:

1. Add an info box that shows the selected replay's:

• Map thumbnail.
• Player names/positions/teams/colors.
• Date played.
• Match length (with spoiler button?).
• Winner with spoiler button.
• Add 1-5 star rating?

2. Automatically group replays by format (1v1, 2v2 etc.)
3. Add function to order replays by date, map name, match length etc.
4. Add function to search/filter replays by keyword, a player, map etc.
5. Scan/show replays in subfolders (mirroring Windows Explorer structure) to allow for making replaypacks.
6. Add functionality to make Windows Explorer management obselete, like a file-rename button, a create subfolder/replaypack button and option to drag replays inside such folder.

[DevGeniusCode]

• Related: Replay Menu looks broken when a replay with missing map file is listed #126