feat(`ci`): add & enable ci/cd #3

Job	Run time
fmt	20s
clippy	1m 29s
docs	1m 20s
feature checks	2m 51s
test no default features (ubuntu-latest)	11s
test default features (ubuntu-latest)	6s
test all features (ubuntu-latest)	8s
test no default features (macos-latest)	17s
test default features (macos-latest)	12s
test all features (macos-latest)	15s
test no default features (windows-latest)	7m 9s
test default features (windows-latest)	7m 41s
test all features (windows-latest)	7m 57s
	29m 56s

Provide feedback