TSK-1823: lint checking arl/skycomponent
TSK-1823: lint checking arl/skycomponent

* white space fixes
* unused references fixes
* function interface type declarations

SKA-ScienceDataProcessor/algorithm-reference-library,SKA-ScienceDataProcessor/algorithm-reference-library,SKA-ScienceDataProcessor/algorithm-reference-library,SKA-ScienceDataProcessor/algorithm-reference-library,SKA-ScienceDataProcessor/algorithm-reference-library