[DEV] Add missing API in c++ wrapper.
[DEV] Add missing API in c++ wrapper.

Change-Id: Ieaa69e734c9b82e7ae4dc914bfd1848dabcdd2fc

Parrot-Developers/libpomp,Parrot-Developers/libpomp,Parrot-Developers/libpomp,Parrot-Developers/libpomp