Renaming Script Contexts

- Determined how the various script contexts were used and renamed accordingly.
- ScriptContext2_Enable/Disable => Lock/UnlockPlayerFieldControls - The sole purpose of the flag is to make sure the player can't move around in the overworld. It has nothing to do with script contexts.
- ScriptContext1 => ScriptContext - It is the global script context used to set up scripts which run over many frames.
- ScriptContext2_RunNewScript => RunScriptImmediately - ScriptContext2's sole purpose was to run scripts immediately and in a separate context, usually while the global context is waiting for things like map loads or screen changes.

src/mirage_tower.c

@@ -361,7 +361,7 @@ static void PlayerDescendMirageTower(u8 taskId)
         (gSprites[player->spriteId].y + gSprites[player->spriteId].y2))
     {
         DestroyTask(taskId);
-        EnableBothScriptContexts();
+        ScriptContext_Enable();
     }
 }
 
@@ -439,7 +439,7 @@ static void FinishCeilingCrumbleTask(u8 taskId)
 {
     FreeSpriteTilesByTag(TAG_CEILING_CRUMBLE);
     DestroyTask(taskId);
-    EnableBothScriptContexts();
+    ScriptContext_Enable();
 }
 
 static void CreateCeilingCrumbleSprites(void)
@@ -565,7 +565,7 @@ static void InitMirageTowerShake(u8 taskId)
         sBgShakeOffsets->bgVOFS = zero;
         CreateTask(UpdateBgShake, 10);
         DestroyTask(taskId);
-        EnableBothScriptContexts();
+        ScriptContext_Enable();
         break;
     }
 }
@@ -654,7 +654,7 @@ static void DoMirageTowerDisintegration(u8 taskId)
         break;
     case 8:
         DestroyTask(taskId);
-        EnableBothScriptContexts();
+        ScriptContext_Enable();
         break;
     }
     gTasks[taskId].tState++;
@@ -719,7 +719,7 @@ static void Task_FossilFallAndSink(u8 taskId)
         FREE_AND_SET_NULL(sFallingFossil);
         break;
     case 8:
-        EnableBothScriptContexts();
+        ScriptContext_Enable();
         break;
     }
     gTasks[taskId].tState++;