[Hub Generated] Review request for Microsoft.RecoveryServices to add version stable/2021-12-01 (Azure#17271)

* Adds base for updating Microsoft.RecoveryServices from version stable/2021-10-01 to version 2021-12-01

* Updates readme

* Updates API version in new specs and examples

* - Adding support for creation of new 'Enhanced' policy for IaaSVM backup
- This policy type will additionally support hourly backups along with daily and weekly supported by current policy
- Added respective examples for create/update, Get and List policy api

* - prettier fixes

* updating readme.md to new api

* - correcting the path of new example files

* - fixing examples

* - more fixes in examples

* fixing spell check error

* fixing semantic errors

* - semantic errors fix

Author: arpja

custom-words.txt

@@ -2472,4 +2472,5 @@ testrun
 loadtest
 xvalue
 yvalue
-servermetrics
+servermetrics
+IAASVM