NLSR

Currently setInfoInterestFilter and setLsaInterestFilter is set in Nlsr class with a callback to HelloProtocol and Lsdb respectively. These functions are then called in Nlsr::initialize. Since #1952 has been implemented we don't have to wait till Nlsr::initialize being called for confParameter to be initialized with routerName. So we should move these functions to their respective classes' constructors. One problem will be that m_signingInfo used to set the interest filter on face is still initialized in Nlsr::initialize via initializeKey. In that case we should either move Nlsr::initializeKey in its own class and construct it in Nlsr before constructing HelloProtocol and Lsdb or use defaultSigningInfo instead.