perf: BW6 pairing computation using non-native Eval (#1312) #1

Job	Run time
staticcheck	1m 30s
test (1.23.x, ubuntu-latest-128)	1s
test (1.23.x, windows-latest)	5m 13s
test (1.23.x, macos-latest)	2m 27s
slack-notifications / notify_slack	1s
	9m 12s

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