Added external Squirrel library.

external/Squirrel/sqmem.cpp

@@ -0,0 +1,9 @@
+/*
+	see copyright notice in squirrel.h
+*/
+#include "sqpcheader.h"
+void *sq_vm_malloc(SQUnsignedInteger size){	return malloc(size); }
+
+void *sq_vm_realloc(void *p, SQUnsignedInteger oldsize, SQUnsignedInteger size){ return realloc(p, size); }
+
+void sq_vm_free(void *p, SQUnsignedInteger size){	free(p); }