User can create templates

### Epic

#141

### Description

**As a:** user (should this be user or owner level?)

**I want to:** create a template

**So that:** I can share it with my team

Team templates are only availble to specific team tiers (EE)

### Acceptance Criteria

- [ ] Template is based on a system template (for policy)
- [ ] User can edit fields
- [ ] Template appears as available to the team
- ...