Get wrong class name from example

[00Kai0]

  "swagger": "2.0",
  "info": {
    "title": "Microsoft Storage Sync",
    "description": "Microsoft Storage Sync Service API",
    "version": "2019-06-01",
    "x-ms-code-generation-settings": {
      "name": "StorageSyncManagementClient"
    }

the info.title should be StorageSyncManagementClient then generated tests will be right.
Also the generated testcase name will be
MgmtMicrosoftStorageSyncTest, not just MgmtStorageSyncTest.
And when create client it will import wrong path form azure.mgmt.storagesync.MicrosoftStorageSync.

we can fix it using x-ms-code-generation-settings in autorest.cli