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/safari_zone.c

@@ -83,7 +83,7 @@ bool8 SafariZoneTakeStep(void)
     sSafariZoneStepCounter--;
     if (sSafariZoneStepCounter == 0)
     {
-        ScriptContext1_SetupScript(SafariZone_EventScript_TimesUp);
+        ScriptContext_SetupScript(SafariZone_EventScript_TimesUp);
         return TRUE;
     }
     return FALSE;
@@ -91,7 +91,7 @@ bool8 SafariZoneTakeStep(void)
 
 void SafariZoneRetirePrompt(void)
 {
-    ScriptContext1_SetupScript(SafariZone_EventScript_RetirePrompt);
+    ScriptContext_SetupScript(SafariZone_EventScript_RetirePrompt);
 }
 
 void CB2_EndSafariBattle(void)
@@ -105,15 +105,15 @@ void CB2_EndSafariBattle(void)
     }
     else if (gBattleOutcome == B_OUTCOME_NO_SAFARI_BALLS)
     {
-        ScriptContext2_RunNewScript(SafariZone_EventScript_OutOfBallsMidBattle);
+        RunScriptImmediately(SafariZone_EventScript_OutOfBallsMidBattle);
         WarpIntoMap();
         gFieldCallback = FieldCB_ReturnToFieldNoScriptCheckMusic;
         SetMainCallback2(CB2_LoadMap);
     }
     else if (gBattleOutcome == B_OUTCOME_CAUGHT)
     {
-        ScriptContext1_SetupScript(SafariZone_EventScript_OutOfBalls);
-        ScriptContext1_Stop();
+        ScriptContext_SetupScript(SafariZone_EventScript_OutOfBalls);
+        ScriptContext_Stop();
         SetMainCallback2(CB2_ReturnToFieldContinueScriptPlayMapMusic);
     }
 }