…0-12-01 to version 2021-06-30-preview

* Add SDK Generation Options for new API Version (#3179)

* Add SDK generation for 2021-06-30-preview

* The following fixes were done:
 * Fixed schema location: preview instead of stable
 * Updated go SDK generation to point to preview namespace

* Remove Ruby support

* add SystemData and update instance and endpoints definitions

* added systemdata to all examples

* fix typo

* fix prettier issues

* added experimental operations fix

* fixed some errors

* addressed lint and model errors

* fixed type issues with endpoints examples

* Fixed autorest error

* removed unnecessary _allOf_s

* Add Time Series Database Connection Resource and CRUD API Endpoints (#3180)

* Added basic time series integration resource CRUD and resource description

* Add list call for TSDB integration resources

* Modify naming for adx endpoint

* Rename document names and paths from integration resources to time series database connections; also clean up descriptions, and make more specific to time series database connections (rather than general integrations)

* Update operation names

* Resolve review comments

* Add examples for time series database connection CRUD

* Add example for missing status code 200 to DELETE

* Run prettier and fix formatting issues

* Align tags, solve issue in Python SDK generation

* Align python readme

* Fix linter error

* Fix linter error 2

* Fix linter error

* Made privateEndpointConnections readonly, added additional documentation for keybased and entitybased authenticationType (#3358)

* Address major lintdiff warnings

* Fix more linter warnings

* Address remaining lintdiff warnings and errors

* Remove property flattening to avoid issues with polymorphism, edit suppression directives to point to new location

* Address lintdiff error

* Add systemData property to private endpoint connection resource

* Address breaking change warnings

* Fix inheritance

* Update suppressions to point to new locations in document

* Updated TSDB connection parameter set

* Fix issue in property set

* Revert readOnly=true from private endpoint connections property

* Revert change to TopicEndpoint

* Back to camelcase...

* Revert change in old API version

* Revert TopicEndpoint back to camelCase

* Revert allOf addition

* Change capitalization of TopicEndpoint back to original from previous version

* Add approved suppression

* Fix $.definitions path in suppression rules

Co-authored-by: Nate Lehman <nalehman@microsoft.com>
Co-authored-by: Nate Lehman <njlehman1@gmail.com>

…dev-digitaltwins-Microsoft.DigitalTwins-2021-06-30-preview-merge-with-main