Registration for built-in Cortex feed functions.

def _initFeedFuncs(self):
        '''
        Registration for built-in Cortex feed functions.
        '''
        self.setFeedFunc('syn.nodes', self._addSynNodes)
        self.setFeedFunc('syn.splice', self._addSynSplice)
        self.setFeedFunc('syn.ingest', self._addSynIngest)