Merge pull request #121 from eval-exec/exec/unpack-sudt-amount #391

Job	Run time
unit-test (ubuntu-latest)	3m 32s
linters (ubuntu-latest)	2m 35s
security-audit	3m 30s
unit-test (macos-latest)	1m 47s
linters (macos-latest)	1m 21s
build-examples (ubuntu-latest)	8m 37s
unit-test (windows-2019)	5m 55s
build-examples (macos-latest)	1m 53s
build-examples (windows-2019)	8m 5s
ci	1s
	37m 16s

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