Slowly stepping the codebase towards having renderer-agnostic types and keeping the translation of PICA-types to OpenGL/VK/DX/Software/etc to the renderer-backend.
Following the trend of #33: `std::span` provides some useful utility
functions like `size_bytes()` and `as_bytes()` and serves as a better
non-owning "chunk of data"-type over just passing around an
`std::array&`.
Use the command `clang-format -i tests/**/*.c src/**/*.cpp include/**/*.hpp`
to process all of the project's files.
Using the one from [pcsx-redux](https://github.com/grumpycoders/pcsx-redux/blob/main/src/.clang-format)
as a basis and then made additional edits to be the _least_ disruptive
to the pre-existing formatting patterns.
`constexpr` functions for extractint bitfields that lends itself a bit
better to emitting instructions like `bextr` on x86 or `ubfx` on arm64.
And may subjectively make things a bit more readable.
"Extract `5` bits" rather than `& 0x1F`.
Wunkolo