typing: make the manifest classes known to pytype
These are the same changes as
c1d7ac70980b and
45270e286bdc made to dirstate,
for the same reasons. The migration away from decorating the classes with
`@interfaceutil.implementer` was started back in
3e9a660b074a, but missed one.
lib - sys sys
mercurial - sys sys
hgrc.d - sys sys
9diff.rc - sys sys
factotum.rc - sys sys
rc - sys sys
bin - sys sys
9diff - sys sys
hg - sys sys
sys - sys sys
lib - sys sys
python - sys sys
lib - sys sys
python2.5 - sys sys
site-packages - sys sys
hgext - sys sys
+ - sys sys
mercurial - sys sys
+ - sys sys
mercurial-VERSION-py2.5.egg-info - sys sys
src - sys sys
cmd - sys sys
hg - sys sys
+ - sys sys