Extract the code editor settings from wp_enqueue_code_editor()

[pento]

The block editor needs grab just the code editor settings, without enqueueing the code editor scripts.

Splitting wp_enqueue_code_editor() up into two functions will allow this.

[pento]

In 43761:

General: Extract the code editor settings from wp_enqueue_code_editor().

They're now returned by a new function, wp_get_code_editor_settings(), so they can be reused by the block editor.

See #45127.

[desrosj]

In 44121:

General: Extract the code editor settings from wp_enqueue_code_editor().

They're now returned by a new function, wp_get_code_editor_settings(), so they can be reused by the block editor.

Props pento.

Merges [43761] to trunk.

Fixes #45127.