Added user prompt for uapprove terms of use

bootstrap.sh now has addidional user prompts to ask the user if it would
like to enable terms of use for uApprove.
Modified tou.enabled to use ansible variables

Removed hardcoding for tou.enabled and modified it to use a variable
from group_vars.
Added a task to copy over terms of use html file

A new task has been added to conditionally add the terms of use html
file and set the tou.enabled setting. This is based on user input.