C++: fix SWIG issue with constructors
C++: fix SWIG issue with constructors

Signed-off-by: Mislav Novakovic <5678c0d5a488e1fbc1213419c52ed0f667208fac@sartura.hr>

PavolVican/libyang,PavolVican/libyang,PavolVican/libyang,PavolVican/libyang,PavolVican/libyang