Upgrade D3D12 Agility SDK to 1.615.0

[MarijnS95]

Closes #2054

https://devblogs.microsoft.com/directx/agilitysdk-1-716-0-preview-and-1-615-retail/

[MarijnS95]

On an "unrelated" sidenote, I had to change C:\Program Files\Microsoft Visual Studio\2022\Community\Common7\Tools\Launch-VsDevShell.ps1 on my system to call & 'C:\Program Files\Microsoft Visual Studio\2022\Community\Common7\Tools\VsDevCmd.bat' instead of Enter-VsDevShell @params, because the latter kept complaining about:

Enter-VsDevShell: C:\Program Files\Microsoft Visual Studio\2022\Community\Common7\Tools\Launch-VsDevShell.ps1:169:9
Line |
 169 |          Enter-VsDevShell @params
     |          ~~~~~~~~~~~~~~~~~~~~~~~~
     | Cannot process argument because the value of argument "name" is null. Change the value of argument "name" to a non-null value.

(With -Verbose or even just reading the code, it doesn't appear that @params ever receives a name argument so this must be some deeper internal error.)

I seem to be the first to hit this, online search results don't show any resolution. Since this command is loaded from a (probably closed?) .dll I have no idea how to further debug and fix this.

[mikebattista]

Thanks!