Add the Hooks Documentation in the Wiki

[akirk]

This adds a script that extracts the hooks offered by the Enable Mastodon Apps plugin and writes to the Enable Mastodon Apps Wiki Hooks Documentation.

This is a screenshot of the mastodon_api_account page.

Adding Hook Documentation

In this PR you can also see how hooks can be documented:

Add a comment block before the apply_filters or do_action function call. The first line will be the text displayed in the hooks list:

Other lines appear on the documentation page (Example: mastodon_api_account).

Add example code by writing:

* Example:
* ```php
* apply_filters( 'hook_name', function ( $params ) {
*    // modify params
*    return $params;
* } );
* ```

Extraction process

• Create the wiki directory by running git clone git@github.com:akirk/enable-mastodon-apps.wiki.git.
• Run php bin/extract-hooks.php script via CLI.
• Change into the enable-mastodon-apps.wiki directory and observe the new or changed files.
• git commit and git push the changes.
• Visit the wiki to inspect the updates.