lib: respect --disable-daemon flags in route_types.h
* remove pre-generation of route_types.h from configure
This change is a partial revert of commit
306ed6816. This is a little
drawback, but at least "make lib/libfrr.la", mentioned in the commit,
still works because route_types.h is forced to be built in
f1b32b2e5.
* add "enabled" field to route_types.txt to track which daemon should
be enabled to add the routing protocol to "show ip route" header and
to redistribution list
Signed-off-by: Igor Ryzhov <iryzhov@nfware.com>