Based on: hpbar-v15b.pk3
https://github.com/PkmX/hpbar

Changes in 1.0:
- Consecutive kill count increased from 5 seconds to 10 seconds, script 31241
- Define max trackers decreased from 32 to 12. Lags levels with lots of trackable targets.
- Updated CVARINFO for default values: hpbar_threshold = 100; hpbar_show_friendly = true; hpbar_zan3 = true;
- hpbar_show_friendly is always on
- Updated function common31233 to show all wounded monsters, and all Marine players with health above.
  Marine max_health imputed with 100 as is 0 somehow.
- Puppet Ghost does not have tracker as is not identified in script 31233 and not passed over to common31233.
  To track Ghost, need update script 31233.
- Updated script 31234 to hide "friendly" text for both Marines and Puppeteers.

Changes in 1.1:
- Updated function common31233 to exclude force track, show only health bars for
  applicable cases that are in scope (less lags)
- Updated function "should_track" to disable forced +BOSS tracking even if no REKTS.
  This made some levels unplayable as all monsters are tracked.
  Now flag is based only on actual REKTS (less lags)
- Define max trackers decreased from 12 back to 24 as bosses are not force tracked.

Changes in 1.2:
- Net traffic optimization. "hpbar-enter" splitted in 2 parts with "hpbar-enter", "hpbar-enter-hb" that triggers
  script 31233 for HP bar. 
- Script 31233 scanner distance reduced from 8192 to 2000 map units (could be reduced further).
- Script "hpbar-enter-hb" frequency reduced from delay(1) to delay(3), each third tick.

Changes in 1.3:
- script 31233 updated to remove zan3 part and use standart SetActivatorToTarget(0) functionality.
  Changing TIDs seemed to result in more lag, showing spawned players despite not being aimed at etc.