Build native Windows packages for both RDNA4 targets

Add explicit gfx1200/gfx1201 builds, runtime selection and per-target
code objects. Guard staging, packaging and installation against mixed
architectures; retain gfx1201 compatibility and strict K/M arithmetic.

Adapt realdody's target configuration and MSVC binary16/BOOL portability
fixes from ae530b0. Do not import its forced gfx12 layout on RDNA3.
Add exhaustive binary16 and C++/PowerShell target contract regressions.

Validation: 20 CTest gates on RX 9070 XT; four software-only gfx1200 gates;
MSVC portability compile checks; exact 4K K async and M control outputs;
isolated package install/restore and mixed-target rejection tests.
No physical gfx1200 validation is claimed.

Co-authored-by: realdody <[email protected]>

tools/windows/generate_d3d12_hooks.py

@@ -52,8 +52,9 @@ def generate(source):
     slot = 9  # IUnknown(3), ID3D12Object(4), DeviceChild(1), CommandList(1).
     for version, interface, methods in sorted(classes):
         for result, name, arguments in methods:
-            result = ' '.join(result.split())
-            arguments = ' '.join(arguments.split())
+            # MinGW WINBOOL and Microsoft SDK BOOL have the same ABI.
+            result = ' '.join(result.split()).replace('WINBOOL', 'BOOL')
+            arguments = ' '.join(arguments.split()).replace('WINBOOL', 'BOOL')
             declarations = [arg.strip() for arg in arguments.split(',')] if arguments else []
             names = []
             for declaration in declarations: