Add field_html() and field() to Sunrise class (implementation in _Sunrise_Fields_Helper)
Added field() and set_object_id() to Sunrise_Field_Base.
Added _Sunrise_Objects_Helper and moved private _ensure_object_type() from _Sunrise_Forms_Helper and made public as _Sunrise_Objects_Helper::ensure_object_type(). Also added _ensure_object_id().
Added to ensure_form_query_args() and get_form_fields() to _Sunrise_Forms_Helper.
Added check to _Sunrise_Forms_Helper::get_forms() to omit empty forms query args.
Added attribute info for the HTML <a> tag to Sunrise::get_html_attributes() (implemented in _Sunrise_Html_Elements_Helper.)
Added default value for $object_type on "post/{$post->post_type}" for Sunrise_Object_Classifier::assign().