Adding numberformatdecimal, modified lc/sc_line.png - the old one looks like a minus, sifr version of the euro symbol and a nicer currencyfield icon.

Change-Id: I38f110e1d20f85bb57143884e0c5fd66a38f259f
Reviewed-on: https://gerrit.libreoffice.org/16120Reviewed-by: Adolfo Jayme Barrientos <fitojb@ubuntu.com>
Tested-by: Adolfo Jayme Barrientos <fitojb@ubuntu.com>
(cherry picked from commit bd79b99d)