Add the base model of the cpu vllm sample app to InferenceModel.yaml (#481)

Author: liu-cong

config/manifests/inferencemodel.yaml

@@ -21,3 +21,14 @@ spec:
   criticality: Critical
   poolRef:
     name: my-pool
+
+---
+apiVersion: inference.networking.x-k8s.io/v1alpha2
+kind: InferenceModel
+metadata:
+  name: inferencemodel-base-model-cpu
+spec:
+  modelName: Qwen/Qwen2.5-1.5B-Instruct
+  criticality: Critical
+  poolRef:
+    name: my-pool