added a `get_FOO_display_list()` method to the new `MultiSelectField`
added a `get_FOO_display_list()` method to the new `MultiSelectField`

Such a method is required to safely and easily access the actual “human-readable” values of a field as a list.
MiltosD/CEF-ELRC,JuliBakagianni/CEF-ELRC,zeehio/META-SHARE,JuliBakagianni/CEF-ELRC,zeehio/META-SHARE,JuliBakagianni/META-SHARE,zeehio/META-SHARE,zeehio/META-SHARE,MiltosD/CEF-ELRC,JuliBakagianni/META-SHARE,JuliBakagianni/CEF-ELRC,zeehio/META-SHARE,MiltosD/CEFELRC,JuliBakagianni/META-SHARE,MiltosD/CEF-ELRC,MiltosD/CEFELRC,JuliBakagianni/META-SHARE,JuliBakagianni/CEF-ELRC,JuliBakagianni/CEF-ELRC,MiltosD/CEFELRC,JuliBakagianni/CEF-ELRC,MiltosD/CEFELRC,MiltosD/CEFELRC,JuliBakagianni/CEF-ELRC,MiltosD/CEF-ELRC,JuliBakagianni/META-SHARE,zeehio/META-SHARE,JuliBakagianni/META-SHARE,JuliBakagianni/META-SHARE,MiltosD/CEF-ELRC,zeehio/META-SHARE,MiltosD/CEF-ELRC,MiltosD/CEFELRC,MiltosD/CEF-ELRC,MiltosD/CEFELRC