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/filename.h

@@ -456,7 +456,7 @@ public:
     bool DirExists() const;
 
     /**
-        Returns @true if the directory with this name exists.
+        Returns @true if the directory with name @a dir exists.
     */
     static bool DirExists(const wxString& dir);
 
@@ -475,7 +475,7 @@ public:
     bool FileExists() const;
 
     /**
-        Returns @true if the file with this name exists.
+        Returns @true if the file with name @a file exists.
 
         @see DirExists()
     */