Multi draw indirect may leak memory

[heatyying]

In the file Khronos-Vulkan-Samples/samples/performance/multi_draw_indirect/multi_draw_indirect.cpp

auto &cmd = device->request_command_buffer();
cmd.begin(VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT);
cmd.copy_buffer(*indirect_call_buffer, *cpu_staging_buffer, cpu_staging_buffer->get_size());
cmd.end();

The reset operation is not performed here, which will generate a large number of cmds, resulting in memory leaks