added close concept

results/overhead-findings.txt

src/main/java/teetime/framework/core/Analysis.java

...hroughput/MethodCallThoughputTimestampAnalysis17Test.java

.../teetime/examples/throughput/methodcall/AbstractPipe.java

...st/java/teetime/examples/throughput/methodcall/IPipe.java

...ava/teetime/examples/throughput/methodcall/InputPort.java

...throughput/methodcall/MethodCallThroughputAnalysis10.java

...throughput/methodcall/MethodCallThroughputAnalysis16.java

...throughput/methodcall/MethodCallThroughputAnalysis17.java

...mples/throughput/methodcall/OrderedGrowableArrayPipe.java

...e/examples/throughput/methodcall/OrderedGrowablePipe.java

...est/java/teetime/examples/throughput/methodcall/Pipe.java

...ime/examples/throughput/methodcall/SingleElementPipe.java

...java/teetime/examples/throughput/methodcall/SpScPipe.java

...st/java/teetime/examples/throughput/methodcall/Stage.java

...examples/throughput/methodcall/UnorderedGrowablePipe.java

...ime/examples/throughput/methodcall/stage/Distributor.java

...a/teetime/examples/throughput/methodcall/stage/Relay.java