added a field to vmp2::v4::rtn_t named "vm_enter_offset"...

include/vmp2.hpp

@@ -267,6 +267,7 @@ namespace vmp2
         struct rtn_t
         {
             u32 size;
+            u32 vm_enter_offset;
             u32 code_block_count;
             vmp2::v4::code_block_t code_blocks[ 1 ];
         };