Extend configuration options

[smeeus]

---

name: Pull request
about: Extend configuration options

---

Describe the change
Extend templates to support additional options.

Testing
All options added are being used in a production environment.

[smeeus]

Hi @robertdebock
I have recently switched the backup system for my infra to bareos, using your ansible roles initially for testing and implementation.
Very fast I realized I needed quite some modifications to the available templates to support the multi-site copying of backups and different storages I have. This pull request, and the other ones in the bareos_sd and bareos_fd repos are what I am using in my environments and sites.

The modifications can be beneficial for others wanting to build a larger multi-site backup infrastructure with multiple storage devices etc.

[robertdebock]

That's a big change, let me check a few things before merging, but overall, looks good!