Add support for essential contacts

modules/project/variables.tf

@@ -182,3 +182,10 @@ variable "logging_exclusions" {
   type        = map(string)
   default     = {}
 }
+
+
+variable "contacts" {
+  description = "List of essential contacts for this resource. Must be in the form EMAIL -> [NOTIFICATION_TYPES]. Valid notification types are ALL, SUSPENSION, SECURITY, TECHNICAL, BILLING, LEGAL, PRODUCT_UPDATES"
+  type        = map(list(string))
+  default     = {}
+}