public class SourceToSinkINTTileDelayWriter
A helper class to write delay from the source to the sink of a routed net
(Usage: input.dcp --net net_name outputFilePath --allSinkDelay).
When the "--allSinkDelay" option specified, it writes the delay values from
the source to the sinks (until the interconnect tile node) of the net under the name.
Otherwise, it is specifically for the CLK_IN sink of the net under the name.