StoragePickers: Fix warning about wildcards in vcproj (PRIResource)

[DrusTheAxe]

StoragePickers: Fix warning about wildcards in vcproj (PRIResource)

D:\source\repos\windowsappsdk3\dev\WindowsAppRuntime_DLL\WindowsAppRuntime_DLL.vcxproj : warning : Wildcards in project items are not supported in VC projects or their imports. The 'PRIResource' wildcard project items added in 'D:\source\repos\windowsappsdk3\dev\Interop\StoragePickers\StoragePickers.vcxitems' will not be visible in the Solution Explorer. Please refer to the https://aka.ms/cpp/projectwildcards for supported options.

D:\source\repos\windowsappsdk3\dev\Interop\StoragePickers\StoragePickers.vcxitems : warning : Wildcards and/or some other MSBuild constructs used in project item definitions are not supported in VC projects. They can lead to unexpected behavior, instability or performance degradation in the Visual Studio IDE. Please refer to https://aka.ms/cpp/projectwildcards for supported options.

This is due to dev\Interop\StoragePickers\StoragePickers.vcxitems

Replace the wildcard with explicit <PRIResource...> statements (1 for each of the 14 Strings\*\*.resw files).

Also move StoragePickers project file under a folder in SolutionExplorer (like other projects)

[DrusTheAxe]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[Hong-Xiang]

@DrusTheAxe thanks for your improvement!
The resw file directly under Strings folder should be input for touchdown pipeline, and referenced in

WindowsAppSDK/build/WindowsAppSDK-TDBuild.yml

Line 27 in 838f66b

dev\Interop\StoragePickers\Strings\StoragePickers.resw

, maybe we should not remove it

[DrusTheAxe]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).