Add antrea scale test tool #32194

Job	Run time
Check whether tests need to be run based on diff	32s
Build Antrea image to be used for Kind e2e tests	3m 45s
Build Flow Aggregator image to be used for Kind e2e tests	2m 36s
E2e tests on a Kind cluster on Linux (noEncap)	36m 8s
E2e tests on a Kind cluster on Linux	42m 57s
E2e tests on a Kind cluster on Linux with all features enabled	53m 37s
E2e tests on a Kind cluster on Linux for Flow Visibility	24m 28s
E2e tests on a Kind cluster on Linux with non default values (proxyAll=true, LoadBalancerMode=DSR...	43m 47s
E2e tests on a Kind cluster on Linux (hybrid)	37m 8s
NetworkPolicy conformance tests on a Kind cluster on Linux	8m 13s
Antrea-native (VLAN) secondary network tests on a Kind cluster on Linux	3m 25s
API compatible with client version N-1	8m 45s
Test installation using 'antctl check' command	3m 34s
API compatible with client version N-2	9m 5s
Upgrade from Antrea version N-1	9m 57s
Upgrade from Antrea version N-2	9m 23s
Validate metrics in Prometheus document match running deployment's	2m 1s
Delete uploaded images	0s
	4h 59m 21s

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