settings: dynamic tiles

Add support for dynamic tiles

Demo: https://cloud.ruesga.com/f/71a12e4801/


Required: topic:customtiles_respkg
          topic:readd_customtiles
JIRA: CML-22

Change-Id: I284b3c50efa379a936a9f7d7087404053cced651
Signed-off-by: Jorge Ruesga <jorge@ruesga.com>