Refactored this_program to Program class.
(Program) Added line numbers as metadata.
Refactored program lines for C-main and C-objects.
Refactored program lines for each C-object.
Added program line classification.
Implemented program lines for C-declarations.
(Program) Realigned control-characters in output.
(Program) Refactored generic Add to Line or Declaration.
Realigned indentaton in output of program lines.