(graphiti) Force Instance/Port name to start with a letter
(C) Clean InstancePrinter.
(C) Add debugging feature using annotations.
(DAL) Fix print/printf function translation

Prevents DAL backend from producing procedure declarations and
implementations for the 'print' function which is translated to printf.
(C) Fix print/printf function translation

Prevents C backend from producing forward declarations for 'print'
function.