Support @see tag for GDK

In the generated GDK, the see section prints as plain text rather than a link to other methods.

In my documentation, I've assumed the link should be written as the method signature appears in the source code, and the doc generator would swap it the same way it does for GDK methods (i.e. take the first param as "self")

so I've assumed it should look like this:

 * @see #append(File, Object)

which would point to the GDK method File#append(java.lang.Object)