Add smartgoals website link and icon to layout

Signed-off-by: Prashant Shah <prashah360@gmail.com>
Add model method to return a particular goal details

Signed-off-by: Prashant Shah <prashah360@gmail.com>
Add controller action to view a goal

Signed-off-by: Prashant Shah <prashah360@gmail.com>
Add view to display a goal

Signed-off-by: Prashant Shah <prashah360@gmail.com>