D3D12 - Add support for memory allocators

[kingofthebongo2008]

CreateComittedResource is fine,

However is good to add interface to CreateTexture, CreateTextureEx

Particularly on d3d12 this allocator is very often used

https://github.com/GPUOpen-LibrariesAndSDKs/D3D12MemoryAllocator

[kingofthebongo2008]

Support for a callback to the interface + initial resource transition will be fine

[walbourn]

If I do this, I should probably also update DDSTextureLoader, WICTextureLoader, etc. in the DirectX Tool Kit

Please consider filing an issue here as well: https://github.com/microsoft/DirectXTK12/issues

Currently, CreateComittedResource is called from BufferHelpers, DDSTextureLoader, GeometricPrimitive, GraphicsMemory, Model, ResourceUploadBatch, ScreenGrab, SpriteBatch, SpriteFont, and WICTextureLoader.

A likely implementation would be to add a method to the GraphicsResource class that all these modules use to CreateResources, and that could be used to hook custom allocators.

[kingofthebongo2008]

Indeed, you are right.