typed tripoints in iexamine functions

[mqrause]

Summary

None

Purpose of change

Typed tripoints.

Describe the solution

Convert tripoints mostly to tripoint_bub_ms.
I focused on the iexamine functions present in iexamine_functions_from_string.

Describe alternatives you've considered

Testing

todo

Additional context

I think after this I'm done for now with tripoint conversions.

[PatrikLundell]

• activity_actor.cpp: I don't really understand the "tripoint_bub_ms()" syntax, although I guess it defaults to tripoint_zero as its parameter. Is there a reason for not using tripoint_bub_ms_zero?
• iexamine.cpp line 5469-70->5465: I think this is wrong and "-" should be "+" as the "minus" is built into the tripoint itself.
• 5526-28->5521-22: ditto
• 5530-31->5524-24: ditto

[PatrikLundell]

Note that this PR will clash with #76712, causing merge conflicts. As such, they shouldn't be merged concurrently. Merging is probably not going to be much of an issue itself, though.

[mqrause]

• activity_actor.cpp: I don't really understand the "tripoint_bub_ms()" syntax, although I guess it defaults to tripoint_zero as its parameter. Is there a reason for not using tripoint_bub_ms_zero?

It simply defaults to the default value of the underlying point type, so {0,0,0} for a tripoint. And I think I wrote that before I noticed we have constants for the typed points. Might actually be best to use the _min one, to make clear it's an uninitialized value just needed to create the object. These PRs of the last couple days were more or less written in reverse order upon realizing how deep the typed point rabbit hole goes.