Embeds: Add oEmbed support for crowdsignal.net surveys.

Crowdsignal has a block-editor powered survey/project editor. Surveys created using this editor appear on `*.crowdsignal.net` when published. This changeset adds oEmbed support for these URLs to embed Crowdsignal surveys.

Props donncha, audrasjb, Mamaduka, ntsekouras.
Fixes #57543.

Built from https://develop.svn.wordpress.org/trunk@55182


git-svn-id: http://core.svn.wordpress.org/trunk@54715 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/class-wp-oembed.php

@@ -63,6 +63,7 @@ class WP_oEmbed {
 			'#https?://(.+\.)?smugmug\.com/.*#i'           => array( 'https://api.smugmug.com/services/oembed/', true ),
 			'#https?://(www\.)?scribd\.com/(doc|document)/.*#i' => array( 'https://www.scribd.com/services/oembed', true ),
 			'#https?://wordpress\.tv/.*#i'                 => array( 'https://wordpress.tv/oembed/', true ),
+			'#https?://(.+\.)?crowdsignal\.net/.*#i'       => array( 'https://api.crowdsignal.com/oembed', true ),
 			'#https?://(.+\.)?polldaddy\.com/.*#i'         => array( 'https://api.crowdsignal.com/oembed', true ),
 			'#https?://poll\.fm/.*#i'                      => array( 'https://api.crowdsignal.com/oembed', true ),
 			'#https?://(.+\.)?survey\.fm/.*#i'             => array( 'https://api.crowdsignal.com/oembed', true ),
@@ -184,6 +185,7 @@ class WP_oEmbed {
 		 * | Pinterest    | pinterest.com                             | 5.9.0   |
 		 * | WolframCloud | wolframcloud.com                          | 5.9.0   |
 		 * | Pocket Casts | pocketcasts.com                           | 6.1.0   |
+		 * | Crowdsignal  | crowdsignal.net                           | 6.2.0   |
 		 *
 		 * No longer supported providers:
 		 *

wp-includes/version.php

@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.2-alpha-55181';
+$wp_version = '6.2-alpha-55182';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.