Sync meeting/military/plotinfo structures to Toady headers

[quietust]

You know the drill

[github-actions[bot]]

The sizes of the following types have changed in this pull request. Please verify that this is intentional. Note that renamed types are not currently detected and will also be listed here.

Type	Platform	Previous size	New size (this PR)	Change
activity_event_flow_mapst	linux64	0	56	+56
activity_event_flow_mapst	windows64	0	56	+56
activity_event_type	linux64	4	2	-2
activity_event_type	windows64	4	2	-2
army_popst	linux64	0	44	+44
army_popst	windows64	0	44	+44
conversation_tact_type	linux64	0	4	+4
conversation_tact_type	windows64	0	4	+4
conversation_trouble_type	linux64	0	4	+4
conversation_trouble_type	windows64	0	4	+4
end_cause_type	linux64	0	2	+2
end_cause_type	windows64	0	2	+2
harassment_stage_type	linux64	0	4	+4
harassment_stage_type	windows64	0	4	+4
item_filter_spec	linux64	12	0	-12
item_filter_spec	windows64	12	0	-12
job_art_specifier_type	linux64	0	4	+4
job_art_specifier_type	windows64	0	4	+4
meeting_event_type	linux64	2	4	+2
meeting_event_type	windows64	2	4	+2
meeting_standard_type	linux64	0	4	+4
meeting_standard_type	windows64	0	4	+4
room_rent_info	linux64	32	0	-32
room_rent_info	windows64	32	0	-32
schedule_type	linux64	0	4	+4
schedule_type	windows64	0	4	+4
setting_difficulty_economy_type	linux64	0	4	+4
setting_difficulty_economy_type	windows64	0	4	+4
setting_difficulty_enemies_type	linux64	0	4	+4
setting_difficulty_enemies_type	windows64	0	4	+4
squad_civilian_uniform_type	linux64	0	2	+2
squad_civilian_uniform_type	windows64	0	2	+2
squad_sleep_option_type	linux64	0	2	+2
squad_sleep_option_type	windows64	0	2	+2
timed_event_type	linux64	2	4	+2
timed_event_type	windows64	2	4	+2
topicst	linux64	0	12	+12
topicst	windows64	0	12	+12
ui_sidebar_mode	linux64	2	4	+2
ui_sidebar_mode	windows64	2	4	+2

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[myk002]

slight fix in https://github.com/DFHack/df-structures/commit/97f254635e6c71b0b79f0f55f0a57d15defeb65b