Add support for setting TypeOfService/TrafficClass on connections #7210

Job	Run time
Cargo (ubuntu-latest)	3m 42s
Cargo (ubuntu-latest, --features static)	3m 31s
Cargo (ubuntu-latest, --features overwrite)	3m 7s
Cargo (windows-latest)	8m 49s
Cargo (windows-latest, --features static)	8m 24s
Cargo (windows-latest, --features schannel)	7m 38s
Cargo (windows-latest, --features schannel,static)	7m 37s
Cargo (windows-latest, --features overwrite)	7m 14s
Cargo (macos-latest)	2m 37s
Cargo (macos-latest, --features static)	2m 4s
Cargo (macos-latest, --features overwrite)	2m 2s
Cargo (macos-latest-xlarge)	1m 34s
Cargo (macos-latest-xlarge, --features static)	1m 32s
Cargo (macos-latest-xlarge, --features overwrite)	1m 41s
	1h 1m 32s

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