Add a way to collect bug report data easily

Right now when people filed bug reports, it's hard to know what is going on on the host side, how they are building the GPU code, if they are translating through naga, if vulkansdk is installed, what device they are targeting, the SPIR-V that is generated, etc.

We should have a simple way for users to dump all the data we need to debug which can be attached to a bug report or a gist. It can later be exposed in cargo-gpu

I'm not sure if rustc has something like this or we will have to create our own.

まず cargo-gpu のエントリポイントを確認し、rustc がすでに同等の診断データや環境データを公開しているかを調べます。ホスト、GPU ビルド、naga の変換、Vulkan SDK、対象デバイス、生成された SPIR-V について、ダンプに含める内容を定義します。完了の条件は、ユーザーがバグレポートや gist に添付できる 1 つのレポートを生成できることです。