vWAN support

[caseywatson]

vWAN is becoming the unofficial standard (per partners) for Epic on Azure hub/spoke networking. We should prioritize vWAN support.

---

resource "azurerm_virtual_hub_connection" "vhc_primary" {
  for_each = module.epic_vnets_primary
 
  name                      = "vhc-${each.value.name}"
  virtual_hub_id            = var.vwan_hub_id_primary
  remote_virtual_network_id = each.value.resource_id
  internet_security_enabled = true
}