Add tokio taskname registration for use in tokio-console (#89) #639

Job	Run time
Lints	41s
Documentation	11s
Build Examples	2m 33s
Memory leaks	3m 51s
Minimal Dependency Versions	19s
Build (aarch64-unknown-linux-gnu)	36s
Minimal Dependency Versions (MSRV)	34s
Build (x86_64-pc-windows-gnu)	55s
Minimum Supported Rust Version	24s
Build (x86_64-unknown-linux-gnu)	38s
Semantic Versioning	2m 37s
Test Suite	3m 47s
Publish version	0s
	17m 6s

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