Add SQLite tables command supporting list and csv format

[sejas]

• Related to https://github.com/Automattic/dotcom-forge/issues/9932

Description

• It adds a new command to get all the tables from the SQLite database
• It returns the results in two formats: list and csv

Examples

wp sqlite tables --require=path/to/wp-cli-sqlite-command/command.php

wp_users
wp_usermeta
wp_termmeta
wp_terms
wp_term_taxonomy
wp_term_relationships
wp_commentmeta
wp_comments
wp_links
wp_options
wp_postmeta
wp_posts

wp sqlite tables --format=csv --require=/path/to/wp-cli-sqlite-command/command.php

wp_users,wp_usermeta,wp_termmeta,wp_terms,wp_term_taxonomy,wp_term_relationships,wp_commentmeta,wp_comments,wp_links,wp_options,wp_postmeta,wp_posts

Testing instructions

1. Run composer install --no-dev in this repo
2. Open your terminal and cd into the root directory of a Studio site
3. Copy the local path to this repository to use it in the next command:
4. Run wp sqlite tables --format=csv --require=/path/to/wp-cli-sqlite-command/command.php
5. Run wp sqlite tables --require=/path/to/wp-cli-sqlite-command/command.php

[wojtekn]

Works well @sejas!

We will need to update docs and add tests before we merge, though.

[wojtekn]

Looks good, works as expected. Thanks for updating readme.

[wojtekn]

As we are ignoring some tables as a part of the SQL query, would it make sense to do the same for this one?