This updates the mncc.h to V8 with GCR support, as introduced
in Change-ID I705c860e51637b4537cad65a330ecbaaca96dd5b of osmo-msc
Change-Id: Ia27956e42c6c2f494d59b89f42345462c86b10d2
After many years without ctypeslib maintenance, there's finally a
ctypeslib2 for python3.x
Instead of the crude gcc2xml hack it uses libclang to generate python
directly from the C.
Change-Id: I9efd56623ebeabef4317356a05484a620a3a91cc