Update EccPointQ enum #519

Job	Run time
Book tests	2m 7s
Build target wasm32-unknown-unknown	2m 47s
Bitrot check	1m 38s
Build target wasm32-wasi	2m 19s
Code coverage	2h 21m 59s
Intra-doc links	2m 11s
Rustfmt	14s
Test on ubuntu-latest	9m 25s
Test on i686-unknown-linux-gnu	17m 40s
Test on windows-latest	13m 50s
Test on i686-unknown-linux-gnu with beta features	17m 27s
Test on macOS-latest	11m 10s
Test on i686-unknown-linux-gnu with nightly features	18m 8s
Test on ubuntu-latest with beta features	9m 25s
Test on windows-latest with beta features	13m 26s
Test on macOS-latest with beta features	9m 27s
Test on ubuntu-latest with nightly features	9m 38s
Test on windows-latest with nightly features	14m 52s
Test on macOS-latest with nightly features	8m 22s
	5h 6m 5s

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