imgui-gfx-hal 0.1.0

An imgui renderer backend for gfx-hal
Documentation
# imgui-gfx-hal

This is a simple imgui backend for gfx-hal, based on the vulkan backend [here](https://github.com/SaschaWillems/Vulkan/tree/master/examples/imgui).

# Future improvements
 - Abstract over different memory allocators
 - Better support for multiple textures