DirectX-Graphics-Samples

Merge pull request #835 from microsoft/user/amarp/workgraphs

reverting previous change, since expected behavior will be that the string attributes will be case sensitive and lower case

Merge pull request #834 from microsoft/user/amarp/workgraphs

though not required, made launch mode names start with capital. The shader type is supposed to be case insensitive, but the compiler looks like it's currently failing, so didn't fix that

Merge pull request #833 from microsoft/user/amarp/workgraphs