Azure and Ml file policies

Author: ldematte

modules/repository-azure/src/main/plugin-metadata/entitlement-policy.yaml

@@ -6,3 +6,8 @@ io.netty.common:
       mode: "read"
     - path: "/usr/lib/os-release"
       mode: "read"
+com.azure.identity:
+  - files:
+    - relative_path: ""
+      relative_to: home
+      mode: read

x-pack/plugin/ml/src/main/plugin-metadata/entitlement-policy.yaml

@@ -1,2 +1,6 @@
 org.elasticsearch.ml:
   - manage_threads
+  - files:
+      - relative_path: mlmodel.conf
+        relative_to: config
+        mode: read