Add tracing for multi stream append #94

Job	Run time
build / Build (8)	1m 13s
build / Build (17)	1m 14s
Tests (Previous LTS) / load_configuration / load	3s
build / Build (11)	1m 17s
Tests (Previous LTS) / Secure (PersistentSubscriptions)	1m 56s
Tests (Previous LTS) / Single node (PersistentSubscriptions)	1m 58s
Tests (Previous LTS) / Secure (Streams)	1m 37s
Tests (Previous LTS) / Single node (Telemetry)	1m 37s
Tests (Previous LTS) / Single node (Streams)	1m 36s
Tests (Previous LTS) / Cluster (Streams)	1m 36s
Tests (Previous LTS) / Cluster (PersistentSubscriptions)	1m 47s
Tests (Previous LTS) / Single node (MultiStreamAppend)	1m 40s
Tests (Previous LTS) / Cluster (MultiStreamAppend)	1m 46s
	19m 20s

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