Initial ShowWithoutActivating implementations for Mac and Windows, and attempt to improve IsActive behavior on Mac. Also adding ShowWithoutActivating() and Show/Hide tests, but until the mainloop issues are resolved, not adding them to tests.bkl.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@62508 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/osx/iphone/private.h

@@ -169,6 +169,9 @@ public :
 
     virtual void WindowToScreen( int *x, int *y );
 
+    // FIXME: Does iPhone have a concept of inactive windows?
+    virtual bool IsActive() { return true; }
+    
     wxNonOwnedWindow*   GetWXPeer() { return m_wxPeer; }
 protected :
     WX_UIWindow          m_macWindow;