Add fax admin panel (#15215)

Resources/Locale/en-US/fax/fax-admin.ftl

@@ -0,0 +1,13 @@
+# Command
+cmd-faxui-desc = Open admin window for sending faxes
+cmd-faxui-help = Usage: faxui
+
+# Window
+admin-fax-title = Admin Fax Manager
+admin-fax-fax = Fax:
+admin-fax-follow = Follow
+admin-fax-title-placeholder = Paper name...
+admin-fax-from-placeholder = From who...
+admin-fax-message-placeholder = Your message here...
+admin-fax-stamp = Stamp:
+admin-fax-send = Send