Get scheduled change requests

**Enterprise feature** This endpoint retrieves basic information about all scheduled change requests that match the search criteria provided in the query parameters. The endpoint will return any change request that matches one or more of the provided parameters. If you use no query parameters, you'll get an empty list. For instance, to find all the scheduled change requests that either touch feature `MyFeature` or strategy `0D198067-7D55-460C-9EC7-DB86E3AE261A`, you would use the query string `feature=MyFeature&strategyId=0D198067-7D55-460C-9EC7-DB86E3AE261A`.