VSQL query improvements

[torabian]

In terms of VSQL, we need to have a better documentation, and some code changes.

1- Demo a virtual table, which simualtes 100 milion recrods, and show how it can be exported via service, to file or to socket.

WITH RECURSIVE
  input(id_start, id_limit, id_max) AS (
    SELECT 1, 110, 100  -- start cursor, limit, max_id
  ),
  seq(id) AS (
    SELECT id_start + 1 FROM input
    UNION ALL
    SELECT id + 1 FROM seq, input
    WHERE id < input.id_start + input.id_limit
      AND id < input.id_max
  ),
  words(word) AS (
    VALUES 
      ('alpha'), ('bravo'), ('charlie'), ('delta'), ('echo'),
      ('foxtrot'), ('golf'), ('hotel'), ('india'), ('juliet'),
      ('kilo'), ('lima'), ('mike'), ('november'), ('oscar'),
      ('papa'), ('quebec'), ('romeo'), ('sierra'), ('tango'),
      ('uniform'), ('victor'), ('whiskey'), ('xray'), ('yankee'), ('zulu')
  ),
  tags AS (
    SELECT row_number() OVER () AS rn, word FROM words
  )
SELECT 
  id,
  'Product #' || id AS name,
  word AS tag,
  'user' || id || '@example.com' AS email,
  datetime('now', '+' || id || ' seconds') AS created_at
FROM seq
JOIN tags ON (id % 26) + 1 = tags.rn
order by id

2- Document how to pass the limit, offset, and cursor to the queries,
3- Work both with .IsCounter and also missing it.
4- Make it super easy to be able to cast it into a query, so cli and http can access it without extra coding, (make sure workspace and user column selection is explained.
5- Record video of making this database table and how to query them.