rootio: implement scanner for Chain
This CL implements the needed modifications to baseScanner to support scanning a Chain via NewTreeScanner.
Missing support (code+tests):
- NewTreeScannerVars
- NewScannerVars
- NewScanner
Updates #44.
This CL implements the needed modifications to baseScanner to support scanning a Chain via NewTreeScanner.
Missing support (code+tests):
Updates #44.