Updated and simplified the Doxygen documentation

bin/tools/doxyFilter.sed

@@ -136,13 +136,6 @@ s/^    //
 }
 
 
-# Remove ToDo paragraph to avoid them showing on related pages
-/^To[Dd]o *$/,/^[^ ]/{
-s/^To[Dd]o *$//
-s/^    .*//
-}
-
-
 /^Warning *$/,/^[^ ]/{
 /^Warning/c\
 \\warning
@@ -150,13 +143,6 @@ s/^    //
 }
 
 
-/^Deprecated *$/,/^[^ ]/{
-/^Deprecated/c\
-\\deprecated
-s/^    //
-}
-
-
 /^SourceFiles *$/,/^$/{
 s?SourceFiles?\\par Source files\
 <ul><li><a href="%filePath%">%fileName%</a></li>?