Replay analysis to pick the "most interesting/exciting" replays

[lladdy]

Proposed tool:
Input - a SC2Replay file
Output - a float/integer representing how "interesting" or "exciting" or "good" the replay is.

Simple idea:
Extract basic stats from replays and rank excitement based on raw stats.

Stats could be extracted by sc2reader.

Possible criteria:

1. Game length (e.g. 2h games are not entertaining, too short games might be a crash).
2. One of the players crashed. - DONE
3. Low frame rate/time (the game can't be streamed at the x4 speed).
4. Nothing happened (no real actions) for long time (e.g. the last 10 minutes) which could indicate a draw (e.g. last building is flying out somewhere).
   More info:
   https://liquipedia.net/starcraft2/Stalemate_Detection
5. Close player winrates.
6. Both bots have high ranking.
7. Turnarounds in a game, the more the better.
8. Weak bot beats strong one.
9. We should rate game somehow and show the most interesting ones.
10. Unit damage and/or death frequency.