Fix the filter docs in sanitize_post_field()

[johnbillion]

The sanitize_post_field() function calls nine separate filters on its data depending on various conditions. The documentation for these need improving, and documentation for the missing filters need adding.

Need to be careful about accuracy here because of the very general names of these filters and their dynamic portions.

[johnbillion]

Partial patch attached. Needs some more work and needs checking for accuracy.

[DrewAPicture]

In 59045:

Docs: Add possible filter names to the hook docs for the following filters in sanitize_post_field():

• edit_{$field}
• {$field_no_prefix}_edit_pre
• edit_post_{$field}
• pre_{$field}
• {$field_no_prefix}_save_pre
• pre_post_{$field}
• {$field}_pre
• {$field}
• post_{$field}

Props johnbillion, DrewAPicture.
Fixes #50654

Trac ticket: https://core.trac.wordpress.org/ticket/50654

Follow-up to https://core.trac.wordpress.org/changeset/59045, Missed the @since and @param docblock.

[DrewAPicture]

In 59050:

Docs: Add missing @since and @param annotations for the edit_post_{$field} hook doc.

Props mukesh27
See #50654

Committed in https://core.trac.wordpress.org/changeset/59050