ImGui vertex buffer and index buffer destruction causes validation layer errors.

[VZout]

Describe the bug
"Randomly" the validation layer will give the following error:

validation layer: Cannot free VkNonDispatchableHandle 0x39[] that is in use by a command buffer. The Vulkan spec states:
 All submitted commands that refer to buffer, either directly or via a VkBufferView, must have completed execution (http
s://www.khronos.org/registry/vulkan/specs/1.1-extensions/html/vkspec.html#VUID-vkDestroyBuffer-buffer-00922)

This is because the imgui implementation can destroy vertex and index buffers at runtime while they are still being used. These buffers need to be versioned somehow or allocate a massive buffer instead.