Weight cache invalidation where needed

[RoyBerube]

Summary

SUMMARY: Bugfixes "Containers not updating weight in certain situations"

Purpose of change

Fixes #43328

This addresses a number of situations where weight is not updated because the cache is not invalidated.

• Reload of a wielded tank that cannot be placed in inventory would not add any weight for the contents.

• Unloading the same tank would not change the weight even if the starting weight was correct.

• Unloading of a container on the map to one being wielded would not update the weight.

• Loading of a wielded container from infinite source would not update the weight.

• Wearing a backpack that cannot be placed in inventory from the map would not add the weight.

Describe the solution

Added cache invalidation to fix the situations above plus potentially others which use the same methods. Attempted to limit the invalidation to situations where weight would change such as loading with ammo from the map.

Describe alternatives you've considered

Testing

Tested the situations listed above.

Passed all unit tests.

There is a related problem with weapons loading magazines from the map not updating the weight. It is proving elusive to solve so will leave for another PR.

Additional context