[Hub Generated] Review request for Microsoft.Media/Encoding to add version preview/2022-05-01-preview (#21160)

* Adds base for updating Microsoft.Media/Encoding from version stable/2021-11-01 to version 2022-05-01-preview

* Updates readme

* Updates API version in new specs and examples

* Copy over the swagger files for 2022-05-01-preview

* Fix validation failures

* Fix validation failures

* Fix validation failures II

* Fix readme file

* Fix readme file II

* Fix readme file III

* Restore the original order of the existing models

* Revert the casing change in api version description

Author: jinshang-msft

specification/mediaservices/resource-manager/readme.md

@@ -92,6 +92,21 @@ input-file:
   - Microsoft.Media/Streaming/stable/2022-08-01/streamingservice.json
 ```
 
+### Tag: package-encoding-2022-05-preview
+
+These settings apply only when `--tag=package-encoding-2022-05-preview` is specified on the command line.
+
+``` yaml $(tag) == 'package-preview-2022-05'
+input-file:
+  - Microsoft.Media/Metadata/stable/2022-08-01/AccountFilters.json
+  - Microsoft.Media/Accounts/stable/2021-11-01/Accounts.json
+  - Microsoft.Media/Metadata/stable/2022-08-01/AssetsAndAssetFilters.json
+  - Microsoft.Media/Metadata/stable/2022-08-01/ContentKeyPolicies.json
+  - Microsoft.Media/Encoding/preview/2022-05-01-preview/Encoding.json
+  - Microsoft.Media/Metadata/stable/2022-08-01/StreamingPoliciesAndStreamingLocators.json
+  - Microsoft.Media/Streaming/stable/2022-08-01/streamingservice.json
+```
+
 ### Tag: package-encoding-2022-07
 
 These settings apply only when `--tag=package-encoding-2022-07` is specified on the command line.