Themes: Unapply specific components on theme uninstall

Because we are removing the theme's resource cache when the theme
is installed, it is possible for apps to still reference the paths
to these cached resources.  Once the directories are removed these
paths are no longer valid and can result in apps or even the system
crashing.

This patch checks the current ThemeConfig for any components that
may be applied from the theme being removed and sends a request to
the theme service to change the those components back to defaults.

Change-Id: I800348f9b7db57e5091f684ce5f931c19e8859d4
REF: ALCATELTCL-667