Add Azure Edge Order CLI settings (#17957)

- add subgroups
- simplify command names

Author: necusjz

specification/edgeorder/resource-manager/readme.az.md

@@ -0,0 +1,82 @@
+# AZ
+
+These settings apply only when `--az` is specified on the command line.
+
+``` yaml $(az)
+az:
+    extensions: edgeorder
+    namespace: azure.mgmt.edgeorder
+    package-name: azure-mgmt-edgeorder
+az-output-folder: $(azure-cli-extension-folder)/src/edgeorder
+python-sdk-output-folder: "$(az-output-folder)/azext_edgeorder/vendored_sdks/edgeorder"
+
+# add additional configuration here specific for Azure CLI
+# refer to the faq.md for more details
+directive:
+# add `address` subgroup
+  - where:
+      command: edgeorder create-address
+    set:
+      command: edgeorder address create
+  - where:
+      command: edgeorder delete-address
+    set:
+      command: edgeorder address delete
+  - where:
+      command: edgeorder show-address
+    set:
+      command: edgeorder address show
+  - where:
+      command: edgeorder update-address
+    set:
+      command: edgeorder address update
+# add `order` subgroup
+  - where:
+      command: edgeorder show-order
+    set:
+      command: edgeorder order show
+  - where:
+      command: edgeorder list
+    set:
+      command: edgeorder order list
+# add `order-item` subgroup
+  - where:
+      command: edgeorder create-order-item
+    set:
+      command: edgeorder order-item create
+  - where:
+      command: edgeorder show-order-item
+    set:
+      command: edgeorder order-item show
+  - where:
+      command: edgeorder update-order-item
+    set:
+      command: edgeorder order-item update
+  - where:
+      command: edgeorder delete-order-item
+    set:
+      command: edgeorder order-item delete
+  - where:
+      command: edgeorder cancel-order-item
+    set:
+      command: edgeorder order-item cancel
+  - where:
+      command: edgeorder return-order-item
+    set:
+      command: edgeorder order-item return
+# simplify `list-configuration` with `list-config`
+  - where:
+      command: edgeorder list-configuration
+    set:
+      command: edgeorder list-config
+# simplify `list-product-family` with `list-family`
+  - where:
+      command: edgeorder list-product-family
+    set:
+      command: edgeorder list-family
+# simplify `list-product-family-metadata` with `list-metadata`
+  - where:
+      command: edgeorder list-product-family-metadata
+    set:
+      command: edgeorder list-metadata
+```