Use wx-prefixed macros throughout the repository.

Change {DECLARE,IMPLEMENT}_*CLASS and {DECLARE,BEGIN,END}_EVENT_TABLE
occurrences to use the wx-prefixed version of the macros.

tests/textfile/textfiletest.cpp

@@ -91,7 +91,7 @@ private:
     static void CreateTestFile(size_t len, const char *contents);
 
 
-    DECLARE_NO_COPY_CLASS(TextFileTestCase)
+    wxDECLARE_NO_COPY_CLASS(TextFileTestCase);
 };
 
 // register in the unnamed registry so that these tests are run by default