Ask current password to user when he / she sets a new password

[abollini]

This is the counterpart of the REST ticket https://github.com/DSpace/DSpace/issues/8255

[abollini]

@tdonohue we are interested in take also the angular part as we are working on the REST part. Our estimation is 3-4 days (28 hours)

[tdonohue]

@abollini : Sounds good, will assign to you and add the estimate