[6591]: Portal Users Should be able to Reset Their Password (Review code)

Signed-off-by: Ayoub Zayati <ayoub.ezzayati@exoplatform.com>
6[594] : A New User Should be Asked to Change His Password.

Signed-off-by: Ayoub Zayati <ayoub.ezzayati@exoplatform.com>