look into more prebuilt timer zone things

[rtldg]

surf_summer_ksf has a lot of fancy trigger classnames for momentum mod and timers(?)

trigger_multiples with targetnames: zone_b1_start, zone_b1_end, stage4_start, stage5_start (etc...). stage1_start used as startzone? any reference to these on a website somewhere? (these might just be things that surf servers use to set the trigger as for a zone)

momentummod classname entities: trigger_momentum_timer_start, trigger_momentum_timer_stage (with "stage" "1" key set), trigger_momentum_timer_stop https://docs.momentum-mod.org/entity/trigger_momentum_timer_start/

[sneak-it]

In surf it is very common for mappers to create trigger_multiple entities as premade zones. A few public surf timers are able to choose which trigger_multiple to hook, and utilize that as a zone of their choosing.

It's particularly great for ease of zoning, non-standard zone shapes, sizes, and angles, and continuity across different community servers.

There is generally no standard naming convention - for example there are many ways to specify a Bonus 1 start:

• b1
• b1_start
• bonus1
• bonus_1

etc

[rtldg]

The momentummod classname entities are probably not created unless we use a global filters stripper cfg to modify classname=trigger_multiple & targetname=trigger_momentum_blah_blah so it doesn't really need to be a timer issue.

Since the other zones don't follow a standard naming convention it's probably a waste of time adding some sort of parsing for it and instead the trigger hooking / marking should instead be implemented. Closing this issue since #736 is already a thing.