* The enums are given after compute, to preserve indices for the normal vertex
pipeline.
* Mesh dispatches are considered a new action type, rather than being bundled
into the `Drawcall` type. This will allow them to be distinguished by API
backends as needed. The UI treats them as drawcalls
* We apply this universally even though it's not relevant to D3D11/GL. It means
a couple of empty array entries but it should not cause any significant
issues.
* Shader messages will be identified by group and thread as with compute
shaders. For mesh shaders there is an additional subdivision to identify them
by task group, since each task group can submit a grid of mesh groups.
* We store the compiler used (when known) in shader debug info and use that to
select the compiler for editing as even higher priority than the default for a
given language/encoding combination.
* We also ensure that for known tools we add the input and output parameters
last, after any custom parameters, so that they are always present regardless
of what the user puts in.
* Mostly moving includes from common headers to cpp where possible, and removing
includes of the whole thing where only enums or rdcstr etc are needed.
* Instead of just configuring SPIR-V disassemblers and picking only the first
one when we need to edit SPIR-V, we allow setting up any shader processor that
goes between two shader encodings.
* When editing, the default will still be to use embedded source, and then after
that the first tool that goes from the native shader format to a text format,
but the drop-down allows you to pick any of them.
* Similarly in the shader viewer you can configure the compilation options and
method, to choose the compiler you want to use. Embedded command line
parameters in the shader are automatically appended.
baldurk