Remove identic implementations of wxDir::Exists from platform-specific files and put it in dircmn.cpp (they all used wxDirExists).

Add wxDir::Make() and wxDir::Remove() for coherency with wxDir::Exists() and document them as simple aliases to wxFileName functions, just a bit more readable.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@64632 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

interface/wx/dir.h

@@ -266,12 +266,29 @@ public:
     */
     bool IsOpened() const;
 
+    /**
+        Creates a directory.
+        
+        This is just an alias for wxFileName::Mkdir(); refer to that function
+        for more info.
+    */
+    static bool Make(const wxString &dir, int perm = wxS_DIR_DEFAULT,
+                     int flags = 0);
+
     /**
         Open the directory for enumerating, returns @true on success or @false
         if an error occurred.
     */
     bool Open(const wxString& dir);
 
+    /**
+        Removes a directory.
+        
+        This is just an alias for wxFileName::Rmdir(); refer to that function
+        for more info.
+    */
+    static bool Remove(const wxString &dir, int flags = 0);
+    
     /**
         Enumerate all files and directories under the given directory
         recursively calling the element of the provided wxDirTraverser object