User Story 60501: 101-stream-analytics-job (#216)

* Part of POC to test generating sample code and articles using OpenAI.

quickstart/101-stream-analytics-job/variables.tf

@@ -0,0 +1,15 @@
+variable "resource_group_location" {
+  type        = string
+  description = "Location for the resources."
+  default     = "eastus"
+}
+
+variable "number_of_streaming_units" {
+  type        = number
+  description = "Number of streaming units."
+  default     = 1
+  validation {
+    condition     = contains([1, 3, 6, 12, 18, 24, 30, 36, 42, 48], var.number_of_streaming_units)
+    error_message = "Invalid value for: number_of_streaming_units. The value should be one of the following: 1, 3, 6, 12, 18, 24, 30, 36, 42, 48."
+  }
+}