CodeGen from PR 14605 in Azure/azure-rest-api-specs

Add 2021-05-01 ARM API version for Synapse RP (#14605)

* Adds base for updating Microsoft.Synapse from version stable/2021-03-01 to version 2021-05-01

* Updates readme

* Updates API version in new specs and examples

* Added 2021-05-01 version to Synapse RP ARM API spec

* Fixed spellcheck and prettier checks

* Fixed spellchecks

* Add get pec api

Co-authored-by: Surya Prakash <n.suryap@gmail.com>
Co-authored-by: Surya <sunagesw@microsoft.com>

Author: 3 people