* In a previous update in 2021 many copyright ranges were truncated
accidentally, and some files have been copy-pasted with wrong years. These
dates have been fixed based on git history and original copyright messages.
D3D11 may default to a different adapter than D3D12. For the sharing
test, both adapters must be D3D12 compatible. Tell D3D11 to use the
adapter that D3D12 is using to ensure compatibility.
Also fixed a memory leak in the test.
On laptops with integrated+discrete adapters, adapter 0 may not
support D3D12, so a default create device call will fail. Adapters
other than the 0th one need to be specified explicitly.
baldurk