* Reformatted comments; fixed a couple of oversights
* D bindings: deterministic sub-struct order
* Added missing default to IDL
* Fixed sub-struct linkage; regenerate D binds
* Culled D bindings for header-only C++ functions
* Added missing default to bgfx.idl
* cppinline now supported by all auto-gen bindings
The pattern "func.cppinline and not func.conly" is to make sure that C bindings for `bgfx_vertex_layout_has` are still generated.
