Core/CrashHandler: Compile WheatyExceptionReport only once and moved its global variable initializer to all projects using it

src/tools/vmap4_assembler/VMapAssembler.cpp

@@ -111,3 +111,9 @@ Optional<int> HandleArgs(int argc, char* argv[], std::string* src, std::string*
 
     return {};
 }
+
+#if TRINITY_PLATFORM == TRINITY_PLATFORM_WINDOWS
+#include "WheatyExceptionReport.h"
+// must be at end of file because of init_seg pragma
+INIT_CRASH_HANDLER();
+#endif