Delink character actor base classes and shop keeper actors (#152)

* Delink .text for ActorItemSeller, ActorBeedle, ActorTetra

* Delink .text for ActorCharacterBase, ActorCharacter, ActorGenericCharacter

* Define classes ActorCharacterBase, ActorCharacter, ActorGenericCharacter

* Don't define `override` macro during intellisense/clangd

* Define symbols for ActorCharacter, ActorCharacterBase, ActorGenericCharacter

* Define classes and symbols for ActorItemSeller, ActorBeedle, ActorTetra

* Fix duplicate symbol

include/global.h

@@ -5,15 +5,15 @@
 #define ARRAY_LEN(arr) (s32)(sizeof(arr) / sizeof(*arr))
 
 // Prevent the IDE from reporting errors that the compiler/linker won't report
-#ifdef __INTELLISENSE__
+#if defined(__INTELLISENSE__) || (__clang__)
+#else
+    // `override` was added in C++11 before the DS, so we only use the keyword to indicate overriden functions
+    #define override
 #endif
 
 #define ARM _Pragma("thumb off")
 #define THUMB _Pragma("thumb on")
 
-// `override` was added in C++11 before the DS, so we only use the keyword to indicate overriden functions
-#define override
-
 // Puts variables in the DTCM module by using #pragma section dtcm begin|end
 #pragma define_section dtcm ".dtcm" \
                             ".dtcm"