the big code_80091750.c rename (#684)

* some rename

* type menu

* continue rename and place const

* Renames and doc

* more

* buffer vars

* clang format

* continue rename

* some rename and get it compile (but don't match for obscure reason)

* get it match again and fix some warning

* fix all warning

* Match 6 functions

* continue rename

* load img renames and first step or label menu items

* MenuItem struct names and some rename

* rename around

* rename code_80091750 to menu_item

* clean up a little

* Update menu_item.h

* document waypoint and more

* Revert "document waypoint and more"

This reverts commit 5e6eb4fbcc.

* apply review

* Update menu_item.c

* fix some review

* rename func_8009E620 to clear_menus

* do a rename

* apply review

* finish rename normally

* more small rename

* few fix of name

* few more fix

* minor fix

* Update menus.c

* last rename normally

* Update render_menus.s

* Update menu_items.c

* Renames seg2 textures.c

* MENU_ITEMtype --> MENU_ITEM_TYPE

* remove a useless parameter

* func_80099110 --> clear_menu_textures

---------

Co-authored-by: MegaMech <MegaMech@users.noreply.github.com>
Co-authored-by: AloXado320 <david.albujar.s.30@gmail.com>

src/debug/all_variables.h

@@ -22,7 +22,7 @@
 #include <code_80086E70.h>
 #include <effects.h>
 #include <code_80091440.h>
-#include <code_80091750.h>
+#include <menu_items.h>
 #include <code_800AF9B0.h>
 #include <save.h>
 #include <code_80280000.h>