Adding variable structure for the new game_server config

infra/vultr-kubernetes/variables.tf

@@ -34,6 +34,18 @@ variable cluster {
   })
 }
 
-variable lab_domain {
-  type = string
+variable game_servers {
+  type = object({
+    namespace = string
+    configs = map(object({
+        name  = optional(string)
+        image = string
+        cpu   = string
+        mem   = string
+        port  = number
+        proto = optional(string)
+      })
+    )
+  })
 }
+