Map history replay

Maybe: show all the deaths in the log file, or player combat.

Maybe: color code by how long it has been since the base was last captured. This could highlight the stable vs contentious areas.

Notes about the files:

1. TestMap.map has static information
   • list of bases
   • list of regions (polygons, not necessarily convex)
   • list of patches (decorative elements - not needed for main map)
   • list of ground points (used for interpolating ground colors)
   • list of lairs
   • list of lanes (two points)
2. Game0.savedMap - looks like it lists each base once
   • capturedBases
     • lastIntrusionUnixTime: timestamp
     • name: str
     • team: str
     • towersUp: 1
3. Log.log
   • message
     • unixTime: timestamp
     • tag: PlayerDeath
       • bot: 1
       • champion: enum(Demonologist|Longstrider|Icewitch|…)
       • level: int
       • name: str
       • p: {x: int, y: int}
     • tag: BaseCaptureLog
       • baseName: str
       • capturedBy: str

First step: read TestMap.map and draw it. Second step: set base color based on Game0.savedMap.snapshot. This is only one point in time. Third step: show base owner change events in Log.log with a slider to control time stamp. Code: champz-map.js