VS: Fix detection of VS 2017 installation with WindowsStore
Fix logic in cmVSSetupAPIHelper::IsVS2017Installed to work correctly on repeat calls. While at it, simplify logic in cmVSSetupHelper to avoid duplicate conditions.
Closes: #16549 (closed)
Fix logic in cmVSSetupAPIHelper::IsVS2017Installed to work correctly on repeat calls. While at it, simplify logic in cmVSSetupHelper to avoid duplicate conditions.
Closes: #16549 (closed)