0031632: Draw Harness - handle 3d mouse Raw HID input on Windows

WNT_HIDSpaceMouse - added auxiliary class for processing 3d mouse Raw HID input.
AIS_ViewController::Update3dMouse() - added default processor for 3d mouse input event.
ViewerTest now redirects WM_INPUT to AIS_ViewController::Update3dMouse().
Aspect_VKey enumeration has been extended by 3D view buttons.
WNT_Window::RegisterRawInputDevices() has beend added as a small wrapper
over WinAPI RegisterRawInputDevices() for common HID input devices.

AIS_ViewCube now stores animation duration within AIS_AnimationCamera instead of dedicated duplicating class property.

src/Aspect/Aspect_VKey.hxx

@@ -139,6 +139,20 @@ enum Aspect_VKeyBasic
   Aspect_VKey_BrowserFavorites,
   Aspect_VKey_BrowserHome,
 
+  // 3d view keys
+  Aspect_VKey_ViewTop,
+  Aspect_VKey_ViewBottom,
+  Aspect_VKey_ViewLeft,
+  Aspect_VKey_ViewRight,
+  Aspect_VKey_ViewFront,
+  Aspect_VKey_ViewBack,
+  Aspect_VKey_ViewAxoLeftProj,
+  Aspect_VKey_ViewAxoRightProj,
+  Aspect_VKey_ViewFitAll,
+  Aspect_VKey_ViewRoll90CW,
+  Aspect_VKey_ViewRoll90CCW,
+  Aspect_VKey_ViewSwitchRotate,
+
   // modifier keys, @sa Aspect_VKey_ModifiersLower and Aspect_VKey_ModifiersUpper below
   Aspect_VKey_Shift,
   Aspect_VKey_Control,

src/Aspect/Aspect_VKeySet.hxx

@@ -65,6 +65,11 @@ public:
     return myKeys[theKey].Status == KeyStatus_Pressed;
   }
 
+  //! Return mutex for thread-safe updates.
+  //! All operations in class implicitly locks this mutex,
+  //! so this method could be used only for batch processing of keys.
+  Standard_Mutex& Mutex() { return myLock; }
+
 public:
 
   //! Reset the key state into unpressed state.