Fix items inside items carried by player being processed multiple times per turn

[Hirmuolio]

Summary

SUMMARY: Bugfixes "Fix items inside items carried by player getting processed too many times"

Purpose of change

Fixes #40868
When combined with #40869 fixes #40193

Describe the solution

Processing of items carried by player began by processing all items the player had, including items inside items.
Additionally when each item was processed the items inside it were also processed.
This resulted in items inside items being processed multiple times.

Solution is to process all top level items the player has (=worn and held items). Items inside these items are processed when the container is processed.

There was also an extra processing done on all worn items. This is removed in "I do not think this does anything" commit. I do not think it did anything and one guess was that it was old code from when things like headlamps were processed separately. If anyone has certain knowledge on what it does please say what it did.

Describe alternatives you've considered

Testing

Items inside items carrioed by player are processed only once.
Tested with water in thermos in pocket with some debugging messages.

Grenades no longer blow up after one second if they are activated in pocket.

Additional context