Add support for generating OpTypeAccelerationStructureKHR

[XAMPPRocky]

This PR adds support for OpTypeAccelerationStructureKHR by adding a small pass to manually map reserved functions into another class, so that the methods for those ops can be properly generated.

See also EmbarkStudios/rust-gpu#563 which uses this change.

[MarijnS95]

This looks very close to what is done in #175, albeit that catches every reserved OpType. How about we review and merge that first?

[XAMPPRocky]

This looks very close to what is done in #175, albeit that catches every reserved OpType. How about we review and merge that first?

#175 as far as I can tell doesn't add a Builder::type_acceleration_structure_khr method, which is the important part of this PR that we need for generating those types in rust-gpu.

[MarijnS95]

#175 as far as I can tell doesn't add a Builder::type_acceleration_structure_khr method, which is the important part of this PR that we need for generating those types in rust-gpu.

I can pick that on top if you want, or rebase this PR to introduce that separately. At least we'll have more generic handling for reserved OpType instructions don't you think?

[XAMPPRocky]

I can pick that on top if you want, or rebase this PR to introduce that separately. At least we'll have more generic handling for reserved OpType instructions don't you think?

Anything that makes that method available works for me.

[MarijnS95]

Allright, merged both solutions!

I like your approach more because it sets the type properly for every gen step, to add the missing method through gen_dr_builder_types. I hope that won't break things elsewhere when future changes come around, not sure what the deal is with these "reserved"-these-are-a-type-but-not-really classes anyway 🤔