Ensure We Generate Commands for OData Cast Paths

[peombwa]

Given an OpenAPI path operation of:

/directory/deletedItems/microsoft.graph.application:
  get:
    tags:
      - directory.directoryObject
    summary: Get deletedItems from directory
    operationId: directory_ListDeletedItemsAsUser
    parameters:
      - $ref: '#/components/parameters/top'
    responses:
      '200':
        $ref: '#/components/responses/microsoft.graph.applicationCollectionResponse'
      default:
        $ref: '#/components/responses/error'
    x-ms-pageable:
      nextLinkName: '@odata.nextLink'
      operationName: listMore
    x-ms-docs-operation-type: operation

We should generate a command named Get-MgDirectoryDeletedItemAsUser.