Compliance (beta): 44 API change passages

Added the case resource type. Added the legalHold resource type. Added the caseOperation resource type. Added the caseExportOperation resource type. Added the legalHoldStatus enumeration type. Added the exportOptions enumeration type. Added the exportFileStructure enumeration type. Added the close method to the case resource. Added the reopen method to the case resource. Added the export method to the reviewSet resource. Added the getDownloadUrl method to the caseExportOperation resource. Removed the cases relationship from ediscovery resource. Removed the ediscoveryCase resource type. Changed the type of the bindingParameter parameter in the close method. Changed the type of the bindingParameter parameter in the reopen method. Added the tags relationship to case resource. Added the sourceCollections relationship to case resource. Added the sourceCollection resource type. Added the tag resource type. Added the tagOperation resource type. Added the estimateStatisticsOperation resource type. Added the addToReviewSetOperation resource type. Added the applyTags member to the caseAction enumeration. Added the estimateStatistics member to the caseAction enumeration. Added the addToReviewSet member to the caseAction enumeration. Added the unknownFutureValue member to the caseAction enumeration. Added the childSelectability enumeration type. Added the tenantSources enumeration type. Added the dataCollectionScope enumeration type. Added the applyTags method to the reviewSetQuery resource. Added the estimateStatistics method to the sourceCollection resource. Added the addToReviewSet method to the reviewSet resource. Added the asHierarchy method to the tag resource. Removed the tag member from the caseAction enumeration. Removed the search member from the caseAction enumeration. Removed the addDataToReviewSet member from the caseAction enumeration. Moved the case resource from the microsoft.graph namespace to the microsoft.graph.ediscovery subnamespace. Moved the Custodian resource from the microsoft.graph namespace to the microsoft.graph.ediscovery subnamespace. Moved the datasource resource from the microsoft.graph namespace to the microsoft.graph.ediscovery subnamespace. Moved the reviewSet resource from the microsoft.graph namespace to the microsoft.graph.ediscovery subnamespace. Moved the reviewSetQuery resource from the microsoft.graph namespace to the microsoft.graph.ediscovery subnamespace. Moved the siteSource resource from the microsoft.graph namespace to the microsoft.graph.ediscovery subnamespace. Moved the unifiedGroupSource resource from the microsoft.graph namespace to the microsoft.graph.ediscovery subnamespace. Moved the userSource resource from the microsoft.graph namespace to the microsoft.graph.ediscovery subnamespace.