This way there's less redundancy, and if the library name changes in the
future, it will be changed only in one place.
Signed-off-by: Bertrand Lorentz <bertrand.lorentz@gmail.com>
Add GDate and GDateTime classes to glib, and map
them in the generator's SymbolTable.
(The types TimeZone and TimeVal are also added because
the Date* types depend on them, but there is no need
to map them in the generator.)
Also move the TODOs of other auto-generated classes
to a single TODO in the Makefile