Confirm child account - Story C1 S2

**Tasks:**
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- [x] Create view for confirm page
- [x] Create HTML template for child requests
- [x] Implement accept action
- [x] Implement reject action
- [x] Documentation

**Success**
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Either verify child or deny updating child account accordingly.
**Failure**
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If you are not a parent. Redirect to the signup page for parents
Note : Implemented to redirect to child profile if signed in as child, and login page if not signed in.
This is because it would be silly to ask a child to signup as a parent


Theme:  parents