Change verbosity level of some messages to DEVEL
Change verbosity level of some messages to DEVEL

These messages are interesting only from a developer point of view.
They can be ignored by users interested only in OVAL evaluation.

redhatrises/openscap,OpenSCAP/openscap,jan-cerny/openscap,redhatrises/openscap,openprivacy/openscap,OpenSCAP/openscap,mpreisler/openscap,ybznek/openscap,redhatrises/openscap,jan-cerny/openscap,openprivacy/openscap,Hexadorsimal/openscap,mpreisler/openscap,redhatrises/openscap,ybznek/openscap,mpreisler/openscap,openprivacy/openscap,ybznek/openscap,ybznek/openscap,jan-cerny/openscap,Hexadorsimal/openscap,ybznek/openscap,OpenSCAP/openscap,jan-cerny/openscap,ybznek/openscap,OpenSCAP/openscap,Hexadorsimal/openscap,redhatrises/openscap,jan-cerny/openscap,OpenSCAP/openscap,Hexadorsimal/openscap,OpenSCAP/openscap,Hexadorsimal/openscap,jan-cerny/openscap,openprivacy/openscap,Hexadorsimal/openscap,mpreisler/openscap,mpreisler/openscap,openprivacy/openscap,openprivacy/openscap,redhatrises/openscap,mpreisler/openscap