Translate SQL features

[patiencedaur]

Part of #2496
Page: https://www.tarantool.io/ru/doc/latest/reference/reference_sql/sql-features/
Crowdin: https://crowdin.com/translate/tarantool-docs/84117/en-ru?filter=basic&value=2
Deployment: https://develop.tarantool.io/ru/doc/translate-sql-features/reference/reference_sql/sql-features/
Words: 2466

Refactor the table of SQL features to make it maintainable and translatable.

[NickVolynkin]

Please add a trailing newline

[patiencedaur]

There is a trailing newline, its number is 1045.

[alexandra-mara]

Hello @pgulutzan, @patiencedaur
I made the changes we've discussed above, and I believe this PR is ready to merge

[pgulutzan]

Since I'm only marked as reviewer because of my comment, I only looked for the changes that we discussed.
I didn't see the change to E153 but see it is going to be done for issue #2659, and it will be marked Fail. So I initially thought that the count at the end, Total number of items marked “Fail”: 67, would need to be changed to 68. But now I counted the number of times that I see "Fail." or "Fail," not counting F021, it seems it would be 65. But I'm not good at counting.
So I will say that it looks good to me.

[alexandra-mara]

@pgulutzan I've updated E153 with the example you provided via patch that was merged into this branch, you should be able to see it here 751b017
Yes, of course we have to recount test results, I haven't thought of that. I actually searched through this page for "Fail" occurrences and there were 55, excluding those not from the table and F021. And 80 "Okay"s. I was checking our current test deployment with these updates, it is not live yet

[pgulutzan]

@alexandra-mara: the number 55 surprised me, and now I have realized: all the privilege features are gone. This isn't right, because the list is supposed to be the same as the list in the standard. I suggest that I can put them back as part of the SQL changes for issue #2523. Also I might try changing the "widths:" to see whether it looks better if there is more space in the Example column.

[alexandra-mara]

@pgulutzan, I'm sorry I missed your message, I was away for a week. Yeah, surely we need to add privilege features, as part of #2523, or we can create a new issue

[pgulutzan]

@alexandra-mara: in my last commit for issue #2523 ba284f0 I copied your version of sql-features.rst and added the privilege features and removed a reference to "we" due to another change in the style guide. If I remember correctly, I didn't make other significant changes.