implement `seq` in EO with the help of `dataized`

See #3078, release log:

• c66f07f by @rultor: Merge branch '__rultor'
• f35216e by @Chamber6821: feat: save tuple length betwee...
• c5bbe04 by @rultor: Merge branch '__rultor'
• f36094c by @rultor: Merge branch '__rultor'
• 10b6088 by @maxonfjvipon: fix(#3222): extened logs on pu...
• 0d3e3e4 by @Chamber6821: Merge branch 'objectionary:mas...
• 2d30164 by @maxonfjvipon: fix(#3213): convert normalized...
• 67dff87 by @yegor256: Merge pull request #3206 from ...
• 125c6d1 by @yegor256: Merge pull request #3216 from ...
• 7a992cf by @Chamber6821: fix: rewrite tests from Java t...
• 6ccc1f3 by @Chamber6821: fix: remove test for Java impl...
• 114c382 by @Chamber6821: feat(#3078): imple...
• 075e1eb by @yegor256: new version in README
• c623bc3 by @yegor256: copyrights

Released by Rultor 2.0-SNAPSHOT, see build log