Enabling easy_select2 for FilePathField field

[tropicrainforest]

Dear @asyncee,

I need to have a select2 widget in the Django administrator for the FilePathField field. I looked at the source code and for this purpose, we just need to have another condition along with CharField and ForeignKey in select2_modelform_meta function utils.py.

from django.db.models import ForeignKey, FilePathField

def select2_modelform_meta(model,
                           meta_fields=None,
                           widgets=None,
                           attrs=None,
                           **kwargs):
.
.
.
    for field in model._meta.fields:
        if isinstance(field, ForeignKey) or field.choices or isinstance(field, FilePathField):
            widgets.update({field.name: Select2(select2attrs=attrs)})

I didn't have permission to push it to a new branch. If possible, please enable the select2 widget to FilePathField.

Cheers
Mo