feat: introduced blocks and better project structure

include/codegen/fasm_stack.hpp

@@ -68,7 +68,7 @@ private:
                 auto param_slot = m_allocator->Allocate(fn->params().data[0]);
                 appendf("mov %s, rdi\n", GetSlotAddr(param_slot).c_str());
             }
-            for(auto &fOp : fn->ops())
+            for(auto &fOp : fn->body().ops())
             {
                 GenerateOp(fOp);
             }