chore: add utility script to switch login mode

usr/share/orange-yourdev-login/login-password

@@ -0,0 +1,19 @@
+#!/bin/bash
+#
+# Written by Michel Decima
+# Copyright (C) 2020 Orange
+#
+
+(( EUID == 0 )) || { echo >&2 "Not root." ; exit 1 ; }
+
+update-alternatives --set gdm-smartcard /etc/pam.d/gdm-smartcard-sssd-or-password
+sed -Ei 's/(enable-smartcard-authentication)=.*/\1=false/' /etc/dconf/db/gdm.d/03-smartcard
+dconf update
+systemctl enable sssd.service sssd-pam.socket
+systemctl start sssd.service
+
+cat << EOF
+Please restart desktop manager with command:
+  systemctl restart gdm3
+EOF
+

usr/share/orange-yourdev-login/login-pki

@@ -0,0 +1,17 @@
+#!/bin/bash
+#
+# Written by Michel Decima
+# Copyright (C) 2020 Orange
+#
+
+(( EUID == 0 )) || { echo >&2 "Not root." ; exit 1 ; }
+
+update-alternatives --set gdm-smartcard /etc/pam.d/gdm-smartcard-pkcs11-exclusive
+sed -Ei 's/(enable-smartcard-authentication)=.*/\1=true/' /etc/dconf/db/gdm.d/03-smartcard
+dconf update
+
+cat << EOF
+Please restart desktop manager with command:
+  systemctl restart gdm3
+EOF
+