Purge instance support #3
Description
Requirement
Orchestration clients should be able to purge orchestration data, as described here. Purging single instances and multiple instances using filters should be supported.
Note that this functionality also needs to be added to the sidecar.
One or more integration tests covering this scenario should also be added.
Implementation notes
The following integration test for the MSSQL backend can be used as a reference for writing tests in this project: https://github.com/microsoft/durabletask-mssql/blob/24fdfe6979f5af3d57b4f52aaa3eb30a2ba5038f/test/DurableTask.SqlServer.Tests/Integration/PurgeTests.cs#L35