[connector/routing] Add ability to route by datapoint context (#36523) #95497

Job	Run time
windows-unittest-matrix (receiver-0)	16m 21s
windows-unittest-matrix (receiver-1)	17m 1s
windows-unittest-matrix (receiver-2)	16m 27s
windows-unittest-matrix (receiver-3)	15m 27s
windows-unittest-matrix (processor-0)	8m 43s
windows-unittest-matrix (processor-1)	10m 34s
windows-unittest-matrix (exporter-0)	8m 36s
windows-unittest-matrix (exporter-1)	12m 43s
windows-unittest-matrix (exporter-2)	10m 9s
windows-unittest-matrix (exporter-3)	11m 34s
windows-unittest-matrix (extension)	20m 47s
windows-unittest-matrix (connector)	9m 37s
windows-unittest-matrix (internal)	13m 58s
windows-unittest-matrix (pkg)	9m 5s
windows-unittest-matrix (cmd-0)	4m 10s
windows-unittest-matrix (cmd-1)	4m 44s
windows-unittest-matrix (other)	11m 42s
windows-unittest	0s
	3h 21m 38s

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