Tests

Merge pull request #756 from SethDusek/groupelemexp #2409

Job	Run time
Test JNI(Android) bindings	15m 42s
Clippy (linter)	1m 16s
Check intra-documentation links	2m 8s
Build without default features	1m 19s
Test Swift(iOS) bindings	3m 22s
Run JS tests and publish alpha versions	23m 22s
Code formatting (rustfmt)	21s
Tests on ubuntu-latest	5m 26s
Tests on windows-latest	11m 46s
Code coverage in tests	24m 25s
Tests on macOS-latest	5m 19s
	1h 34m 26s

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