Platform: add SensorsAPI to the WinSDK modulemap

The SensorsAPI headers are not part of the Windows umbrella header and
do not get pulled into the module through some transitive set.
Explicitly list the SensorsAPIs contract into the WinSDK modulemap to
allow use of the api contract from Swift.

Author: compnerd

stdlib/public/Platform/winsdk.modulemap

@@ -335,6 +335,14 @@ module WinSDK [system] {
     export *
   }
 
+  module Sensors {
+    header "sensors.h"
+    header "SensorsApi.h"
+    export *
+
+    link "sensorsapi.lib"
+  }
+
   module User {
     header "WinUser.h"
     export *