This commit introduces a new module called vr_region_facts.
This module aims to return the list of region avaiable avaiable to use
where boot servers.
Sample available here:
```
"vultr_region_facts": [
{
"block_storage": false,
"continent": "Europe",
"country": "FR",
"ddos_protection": true,
"id": 24,
"name": "Paris",
"regioncode": "CDG",
"state": ""
}
]
```
