Fix random, erroneous D binding type generation; add missing IDL defaults (#3210)

* 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.

* Fix mangling issue; use updated BindBC-Common API

* Add missing default to setTransform in IDL

* Fix erroneous generation of `uc_int64`

Non-deterministic ordering of hash-maps were the culprit all along!

* Add missing default to overrideInternal IDL & re-generate

bindings/d/package.d

@@ -3078,7 +3078,7 @@ mixin(joinFnBinds((){
 		- `BGFX_SAMPLER_[MIN/MAG/MIP]_[POINT/ANISOTROPIC]` - Point or anisotropic
 		  sampling.
 		*/
-		{q{size_t}, q{overrideInternal}, q{TextureHandle handle, ushort width, ushort height, ubyte numMIPs, bgfx.fakeenum.TextureFormat.Enum format, c_uint64 flags}, ext: `C++, "bgfx"`},
+		{q{size_t}, q{overrideInternal}, q{TextureHandle handle, ushort width, ushort height, ubyte numMIPs, bgfx.fakeenum.TextureFormat.Enum format, c_uint64 flags=Texture.none | Sampler.none}, ext: `C++, "bgfx"`},
 		
 		/**
 		* Sets a debug marker. This allows you to group graphics calls together for easy browsing in
@@ -3160,7 +3160,7 @@ mixin(joinFnBinds((){
 			mtx = Pointer to first matrix in array.
 			num = Number of matrices in array.
 		*/
-		{q{uint}, q{setTransform}, q{const(void)* mtx, ushort num}, ext: `C++, "bgfx"`},
+		{q{uint}, q{setTransform}, q{const(void)* mtx, ushort num=1}, ext: `C++, "bgfx"`},
 		
 		/**
 		*  Set model matrix from matrix cache for draw primitive.