Introduce z64pause_menu.h header (#1505)

* z64pause_menu.h

* move functions and variables

* Move PauseMenuPage

* move stuff that seems public to the new header

* KALEIDO_OVL_MAX

* bss

* review

* IS_PAUSED

* format

* add argument to pause macros

* Update include/z64pause_menu.h

Co-authored-by: Dragorn421 <Dragorn421@users.noreply.github.com>

* bss

* More IS_PAUSED I missed

* early returns

* bss

* empty commit to trigger GHA

* bss

* bss

* bss

* includes

* bss

---------

Co-authored-by: Dragorn421 <Dragorn421@users.noreply.github.com>

include/variables.h

@@ -38,9 +38,6 @@ extern RomFile gObjectTable[OBJECT_ID_MAX];
 
 extern SceneTableEntry gSceneTable[SCENE_MAX];
 
-extern KaleidoMgrOverlay gKaleidoMgrOverlayTable[2];
-extern KaleidoMgrOverlay* gKaleidoMgrCurOvl;
-
 extern s32 gDbgCamEnabled;
 
 extern Vec3f gZeroVec3f;
@@ -82,6 +79,7 @@ extern u8 gSequenceTable[];
 extern u8 gSampleBankTable[];
 
 // bss
+
 extern s32 gTransitionTileState;
 extern Color_RGBA8_u32 gPlayVisMonoColor;